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
You might just as well tell the manufacturer that male customers _____ not like the design of the furniture.
#89267
A
must
B
shall
C
may
D
need
—Did you pass the driving test?—No.I ________ it,but I had little time practising.
#86355
A
could have passed
B
must have passed
C
can't have passed
D
shouldn't have passed
You _____ return my dictionary now. You can keep it and I will get it from you later.
#87649
A
may not
B
mustn’t
C
can’t
D
needn’t
