He commanded that all the gates      . 
#87592
A
should shut
B
would be shut
C
shut
D
be shut
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But for their help, we        the program in time.
#87503
A
can not finish
B
will not finish
C
had not finish
D
could not have finished
What a pity! Considering his ability and experience, he ______ better.
#87050
A
need have done
B
must have done
C
can have done
D
might have done
The teacher highly recommended that I ___________ more to improve my English.
#87676
A
would practice
B
could practice
C
practice
D
practiced
The chairman requested that ___________. 
#89880
A
the members studied the problem more carefully
B
the problems were more carefully studied
C
the problems could be studied with more care
D
the members study the problem more carefully