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
It is the first time that Chinese astronaut Wang Yue________as one of the volunteers for the Mars-500 test project .
#103597
A
has been selected
B
had been selected
C
has selected
D
selected
He must have done it well, because he told me he just did what he _____ to do.
#101080
A
has been told
B
had been told
C
was told
D
had told
I’m not satisfied with my study, so recently I ______ a talk with my teacher.
#100622
A
have
B
had
C
am having
D
would have
My interest in collecting stamps __________ my childhood.
#99028
A
dates from
B
dated from
C
dated back to
D
went back to
My parents insisted that I _____before 23: 00 at night．
#103206
A
went to bed
B
go to bed
C
would go to bed
D
had gone to bed