Mr Li required the computer equipment referred ________ used in every classroom. 
#89396
A
should be
B
have to be
C
to be
D
to being
推荐题目
The workers demanded that their employer_____ their working conditions. 
#86737
A
had improved
B
would improve
C
improve
D
will improve
I don’t know why she suggested that we _____ the work before dark.
#87356
A
finishing
B
finish
C
would finish
D
to finish
 If I ________ your advice then, I think that the crops could be growing better.
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A
took
B
would have taken
C
had taken
D
have taken