Question

【题目】—Where is my watch？ I ________ find it.
—Don't worry. It must be somewhere in your room.
A.can't
B.mustn't
C.needn't
D.shouldn't

Answer 1

【答案】A
【解析】考查词义的辨析：can't意思为不能，不行；mustn't意思为禁止，不允许；needn’t意思为不必，不需要；shouldn't意思为不应该。问句意思是说我找不到我的手表了。因此答案为A。