mustn’t you
don’t you
didn’t you
needn’t you
第1题：
If you__________a little longer at the party last night, you would have met the pop star.
A． have stayed
B． stayed
C． had stayed
D． would have stayed
第2题：
A、have gone
B、have been gone
C、be gone
D、be going
第3题：
A. stayed out
B. stayed away
C. stayed behind
D. stayed up
第4题：
A.It may be fine tomorrow
B.You should get up early
C.He must be in the gym
D.It might have rained last night
答案：C
解析：原题题意为下面那个情态助词不表示可能性，A中may be表示可能会，B中should表示应该，存在可能性；C中must be表示一定，必须的肯定语气，不表示可能性，D中might表示过去可能；故选C
第5题：
Tom( )attended the meeting last night, but he didn't as he suddenly fell ill.
A. should have
B. had
C. must have
D. could have
答案：A
解析：should have done sth.表示“本该做而没有做的事”。句意：汤姆昨晚本应该参加会议的，但他突然生病了，没有参加。
第6题：
A、wouldn’t have seen
B、shouldn’t have seen
C、mustn’t have seen
D、can’t have seen
第7题：
A、could have rained
B、must have rained
C、would have rained
D、should have rained
第8题：
A. Of course!
B. Sure, I am.
C. No, I did.
D. Sorry, I won't.
第9题：
It ______ last night, for the ground is wet.
A、must rain
B、must be going to rain
C、must have rained
D、ought to rain
第10题：
A、didn’t see
B、haven’t seen
C、wouldn’t have seen
D、hadn’t seen