If  we ___________some measures, we might have prevented the environmental pollution.
#87466
A
take
B
had taken
C
took
D
have taken
推荐题目
If I could change something in my life, I’d change it so that my childhood would _______ in another area.
#87313
A
have been taken place
B
have taken the place
C
have taken place
D
have been taken the place
____ you change your mind,please let me know.
#87606
A
Would
B
Should
C
Must
D
Might