If we ___________some measures, we might have prevented the environmental pollution.
#103274
A
take
B
had taken
C
took
D
have taken
推荐题目
When you get the paper back,pay special attention to what______.
#104059
A
have marked
B
have been marked
C
had marked
D
had been marked
The last thirty years _________ the quick development in almost every field in China.
#103161
A
saw
B
had seen
C
have seen
D
would see
— Sorry to have interrupted you. Please go on. — Where was I ?— You _____ you didn’t like your father’s job.
#104994
A
had said
B
said
C
were saying
D
had been saying
When his mother came in, the boy pretended ____.
#99791
A
reading
B
being read
C
to read
D
to be reading