20. I got up early this morning, but I ________ so because I was not on duty tod

题型：不详难度：来源：

20. I got up early this morning, but I ________ so because I was not on duty today.

A．mustn’t have done	B．needn’t have done
C．didn’t need to do	D．can’t have done

答案

解析

略

举一反三

22．— Marx looks nervous.
— So___________you if you had so fierce a competition.

A．do

B．did

C．will

D．Would

题型：不详难度：| 查看答案

Some experts demanded that children _______ time to sleep and play.

A．give

B．should

C．would be given

D．be given

题型：不详难度：| 查看答案

Some women a good salary in a job instead of staying home, but they decided not to work for the sake of the family.

A．could have made

B．should have made

C．would make

D．must make

题型：不详难度：| 查看答案

33. There was no light in the dormitory last night. So, they ________ to the lecture then.

A．must have gone	B．should have gone
C．needn’t have gone	D．couldn’t have gone

题型：不详难度：| 查看答案

34. We tried hard to prevent him from going there, but he just ________ listen.

A．won’t

B．wouldn’t

C．might not

D．mustn’t

题型：不详难度：| 查看答案