问题

“ Isn’t that Tom playing basketball?” “ It ______ be; he fell off the ladder yesterday and got badly hurt.”

A:mustn’t
B:would rather not
C:couldn’t
D:wouldn’t

正确答案是：

同类题型

It is not immediately clear __________ the housing price will go down

The topic___________ a heated discussion.

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It is hoped that the two sides will be able to _____ their differences by peaceful means rather than violent ones.[ ]

John ,why are you so upset?—-I _________ my cellphone all morning but it is nowhere to be found