--I'm told that John had another car accident this morning.--I believe not. He  _________so careless.
#90014
A
shouldn't have been
B
wouldn't have been
C
couldn't have been
D
mustn't have been
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But for their help,we ______ the program in time.
#90428
A
can not finish
B
will not finish
C
had not finished
D
could not have finished
She ____ the film. She knows nothing about it.
#86975
A
can’tsee
B
can’thaveseen
C
mustsee
D
mustn’thaveseen