I _______ have been more than six years old when the accident happened.
#89803
A
shouldn’t
B
couldn’t
C
mustn’t
D
needn’t
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The general ordered that the thief____. 
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A
be punished
B
would punish
C
would be punished
D
should punish
“Do you think he is lazy?” “I _________ so once, but I don’t now.”
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A
may have thought
B
can have thought
C
may think
D
might think
But for these interruptions, the meeting       half an hour ago.
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A
was finished
B
would have finished
C
had finished
D
would finish