If we         now to protect the environment, we’ll live to regret it.
#53390
A
hadn't acted
B
haven't acted
C
don't act
D
won't act
推荐题目
 -_____ you ______ the magazine from the library yet?-Yes. I _____ it for three days.
#52670
A
Have, borrowed; have kept
B
Have borrowed; have borrowed
C
Have , kept; have borrowed
D
Have, kept, have kept
Would you like _______ us to Shanghai?
#55639
A
take
B
taking
C
to taking
D
to take
Could you tell me if Bob__________ the party? If he __________ , please tell me .
#53475
A
joins ; joins
B
will join ; will join
C
will join ; joins
D
joins; will join