He suggested that; we should be bound by a code of conduct; ______?

The tag question for “we should be” is “shouldn’t we”; this question tests grammar knowledge. The suggestion uses “should”; requiring a matching tag. Options A and B use incorrect verbs; “shouldn’t we” aligns with the modal verb. Understanding tag questions ensures grammatical accuracy; this is vital for exams or English discussions; correct tags clarify speaker intent; knowing rules aids in precise communication; accurate usage enhances professional or academic writing about conduct or agreements.