Environmentalists urged that more effective measures ___________by the government to reduce the pollution.
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A
were taken
B
would adopt
C
be adopted
D
should take
推荐题目
The students ______ to write English words carefully from the beginning. 
#87647
A
be trained
B
should be trained
C
train
D
to train
— Has Tim started? He said he would join in the party.— He ____.He is a man of keeping his word.
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A
could have left
B
must have left
C
can’t come
D
won’t be coming
 We _________ the difficulty together, but why didn’t you tell me?
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A
should face
B
might face
C
must have faced
D
could have faced