Direction: In the following questions, a part of the sentence is given in bold. Below are given alternatives to the bold part at (1), (2) and (3) which may improve the sentence. Choose the correct alternative. In case no improvement is needed your answer is (4).
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He must know them in their most plausible form, isn’t it ?
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- isn’t he ?
- mustn’t he ?
- can’t he ?
- No improvement
Correct Option: B
Positive Sentences require Negative Tags. First
Auxiliary (Must) + not (Mustn’t)
Hence, mustn’t he ? is the right usage.
