(2009辽宁大连调研I ______ have been more than six years old when the accident happened. 
#90247
A
shouldn’t
B
couldn’t
C
mustn’t
D
needn’t
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 The project was carefully planned, or a great deal of money ________.
#86486
A
will lose
B
will be lost
C
would have lost
D
would have been lost
________, please try your best to solve the problem in time.
#86362
A
Ought you get into trouble
B
Must you get into trouble
C
Can you get into trouble
D
Should you get into trouble
I was so young.  You__________ better than to rely on me
#88037
A
should have known
B
should know
C
must know
D
must have known