The idiom "a burning question" denotes an urgent or significant issue demanding attention making "an important question" the correct choice. "A confusing question" implies lack of clarity "a simple question" suggests ease and "a forgotten issue" indicates irrelevance none of which fit. Idioms like this add expressiveness to English often appearing in discussions or media to highlight pressing matters. Understanding such phrases enhances comprehension of texts speeches or conversations. It’s crucial for engaging with complex ideas or urgent topics in academic professional or social contexts where figurative language conveys significance effectively.

"Extempore" means a speech given without preparation making option B correct. Other options are unrelated as "emigrate" means to move "excommunicate" means to exclude and "exaggerate" means to overstate. One-word substitutions simplify descriptions useful in concise writing or speech. This skill enhances clarity in journalism or professional communication. Precise vocabulary conveys specific actions efficiently especially in contexts like public speaking or reporting where accurate language ensures clear and effective communication particularly when describing spontaneous actions or events.

The phrasal verb "accord with" means to be in agreement or consistent with something fitting the sentence’s context where new information aligns with a report. "Accord from" "accord on" and "accord to" are not standard phrases making them incorrect. This expression is often used in formal writing such as reports or academic discussions to indicate compatibility. Selecting the correct phrasal verb is crucial for conveying precise meaning especially in professional or academic contexts. Accurate language ensures clarity in communication particularly when discussing alignment or consistency in reports or analyses.

"Valiant" means brave and its antonym "diffident" means timid making option A correct. Other options are unrelated. Antonym knowledge enhances vocabulary useful in writing or speaking. Contrasting ideas clarify descriptions especially in narratives or critiques. This skill is vital for professional communication. Accurate antonyms convey contrasting qualities effectively particularly in stories or reviews where precise language enhances the portrayal of characteristics or behaviors clearly and effectively in various settings.

The phrasal verb "dish up" means to serve food especially in a meal context making it ideal for children waiting for their mother to serve dinner. "Dish out" implies distributing food casually less fitting for a family meal. "Dish in" is not a valid phrasal verb and "none of these" is incorrect as "dish up" fits. This phrase is common in everyday English particularly in domestic settings. Choosing the right phrasal verb ensures clarity in communication especially in descriptive writing or conversations about daily routines where precise language conveys actions effectively.

"Barren" means unproductive and its antonym "fertile" means productive making option B correct. Other options are unrelated. Antonym knowledge enhances vocabulary useful in writing or speaking. Contrasting ideas clarify descriptions especially in scientific or narrative contexts. This skill is vital for professional communication. Accurate antonyms convey contrasting qualities effectively particularly in reports or stories where precise language enhances the portrayal of conditions or environments clearly and effectively in various settings.

The pair "Diffident

"Devoid" means empty or lacking and "barren" is a synonym making option C correct. Other options are incorrect. Synonym knowledge enhances vocabulary useful in writing or speaking. Choosing the right synonym ensures precise expression especially in descriptive or analytical contexts. This skill is vital for professional communication. Accurate synonyms convey states or qualities effectively particularly in essays or reports where precise language enhances clarity and impact in describing conditions or characteristics.

The phrasal verb "get over" means to overcome or recover from something like fears fitting the sentence’s context of gradually moving past an emotional barrier. "Come over" refers to visiting a place which doesn’t apply here. "Control over" is not a standard phrasal verb in English and "none of these" is incorrect since "get over" is appropriate. This phrase is commonly used in English to describe overcoming challenges such as fears or setbacks. It’s vital for clear communication in both casual and formal settings like writing or speaking about personal growth and resilience in various situations.

"Carried off" means to take away fitting the context of an eagle taking a lizard making option C correct. Other options are less appropriate. Proper phrasal verb usage ensures clarity especially in descriptive writing or narratives. This skill is vital for professional communication. Accurate phrasal verbs convey actions effectively particularly in stories or reports where precise language enhances the description of movements or events clearly and engagingly in various settings.

The direct speech changes to indirect with "I was talking about" matching tense and pronoun making option B correct. Other options are incorrect. Proper indirect speech ensures grammatical accuracy especially in reported speech or narratives. This skill is vital for professional communication. Accurate indirect speech conveys conversations clearly particularly in reports or stories where precise reporting of dialogue enhances clarity and authenticity in various contexts.

"Jumped at" means eagerly accepting an offer making option A correct. Other prepositions don’t fit. Proper phrasal verb usage ensures clarity especially in descriptive writing or negotiations. This skill is vital for professional communication. Accurate phrasal verbs convey actions or intentions effectively particularly in business or personal contexts where precise language enhances the expression of enthusiasm or decisions clearly and professionally in various settings.

The active voice "The police is looking into the matter" becomes the passive "The matter is being looked into by the police" making option C correct. Other options are incorrect. Proper voice change ensures grammatical accuracy especially in formal writing or analysis. This skill is vital for professional communication. Accurate voice usage conveys actions clearly particularly in reports or narratives where passive constructions enhance clarity or focus in various contexts.

"Pulchritudinous" means beautiful and its antonym "unsightly" means unattractive making option D correct. Other options are unrelated. Antonym knowledge enhances vocabulary useful in writing or speaking. Contrasting ideas clarify descriptions especially in critiques or narratives. This skill is vital for professional communication. Accurate antonyms convey contrasting qualities effectively particularly in reviews or stories where precise language enhances the portrayal of appearances or characteristics clearly and effectively.

"The Moon" and "the Sun" use definite articles for specific celestial bodies making option A correct. Other options misuse articles. Correct article usage ensures grammatical precision especially in scientific or descriptive writing. This skill is vital for professional communication. Accurate articles enhance clarity in reports or narratives particularly when referring to specific entities where precise language ensures clear and professional communication in various contexts.

"Prevent from" and "about" fit the sentence meaning to stop people from discussing a matter making option B correct. Other options are incorrect. Proper preposition usage ensures clarity especially in formal writing or discussions. This skill is vital for professional communication. Accurate prepositions convey actions or restrictions effectively particularly in legal or social contexts where precise language enhances clarity and impact in arguments or statements about permissions or prohibitions.

"Insolent" means rude or disrespectful and "disrespectful" is a synonym making option A correct. Other options are unrelated. Synonym knowledge enhances vocabulary useful in writing or speaking. Choosing the right synonym ensures precise expression especially in descriptive or critical contexts. This skill is vital for professional communication. Accurate synonyms convey attitudes effectively particularly in reports or narratives where precise language enhances clarity and impact in describing behaviors or interactions in various settings.

"Earnest" means serious and its antonym "frivolous" means not serious making option B correct. Other options are unrelated. Antonym knowledge enhances vocabulary useful in writing or speaking. Contrasting ideas clarify descriptions especially in narratives or critiques. This skill is vital for professional communication. Accurate antonyms convey contrasting qualities effectively particularly in stories or reviews where precise language enhances the portrayal of attitudes or behaviors clearly and effectively in various contexts.

A "pessimist" expects negative outcomes and "cynic" is a close synonym implying distrust or negativity making option A correct. Other options are unrelated. Synonym knowledge enhances vocabulary useful in writing or speaking. Choosing the right synonym ensures precise expression especially in descriptive or persuasive contexts. This skill is vital for professional communication. Accurate synonyms convey attitudes effectively particularly in essays or discussions where precise language enhances clarity and impact in describing perspectives or characteristics in various settings.

The definite article "the" is appropriate for specific opportunities making option B correct. Other options misuse articles. Correct article usage ensures grammatical precision especially in formal writing or speech. This skill is vital for professional communication. Accurate articles enhance clarity in reports or presentations particularly when referring to specific items or opportunities where precise language ensures clear and professional communication in academic or professional contexts enhancing understanding and credibility.