25. I ______ have been more than six years old when the accident happened. 
#90505
A
shouldn’t
B
couldn’t
C
mustn’t
D
needn’t
推荐题目
The professor gave orders that the test ____before 5:30.
#86937
A
be finished
B
will finish
C
will be finished
D
shall finish
The teacher suggested the dictionary ___________ at once.
#87754
A
be referred to be bought
B
be referred to being bought
C
referred to be bought
D
referred to being bought