The students ______ to write English words carefully from the beginning. 
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A
be trained
B
should be trained
C
train
D
to train
推荐题目
If he had worked harder, he _________.
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A
would succeed
B
had succeeded
C
should succeed
D
would have succeeded
The project ______ last month but unfortunately it had to be prolonged because of the financial problem.
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A
needn’t have been finished
B
shouldn’t have finished
C
could have been finished
D
must have finished
My father worked day and night. Otherwise, there ________ no one to support the family.
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A
would be
B
must be
C
would have been
D
must have been