Question

Fill in the blank with the most appropriate question tag:
We mustn't be late, ____?

• A. mustn't we
• B. could we
• C. couldn't we
• D. must we

Answer 1

The correct option is D must we

A question tag turns a statement into a question. It is often used for checking information that we think or we know is true. Question tags are formed with the auxiliary or modal verb from the statement and the appropriate subject.Usually, if the main clause is positive, the question tag is negative. If the main clause is negative, the tag is positive.

The given sentence is negative. Hence, the question tag should be positive.

The subject is: 'We'. The modal used is: 'must'. Hence, the appropriate question tag is: 'must we?' as given in option D.

Option A is incorrect as the question tag given in this option is negative. The given negative statement should be followed by a positive question tag.

Option B: This option is incorrect as the modal has been changed from 'must' to 'could' in this option.

Option C: This option is incorrect as the modal has been changed from 'must' to 'could' in this option. Further, the question tag given in this option is negative. The given negative statement should be followed by a positive question tag. Hence, this is incorrect.