--- I had thought he would be nervous in this speech competition, but he turned out to be calm.--- He        quite enough preparation for it.
#62830
A
should do
B
must do
C
should have done
D
must have done
推荐题目
I am not feeling myself today! We ____ have drunk that much beer last night. 
#62707
A
mustn’t
B
couldn’t
C
needn’t
D
shouldn’t
One ought ________ for what one hasn't done.
#62937
A
not to be punished
B
to not be puished
C
to not punish
D
not be punished