If we _________ now to protect the environment, we’ll live to regret it.
#100580
A
hadn’t acted
B
haven’t acted
C
don’t act
D
won’t act
推荐题目
--- Peter, do you know who____ my dictionary ?---Sorry , I don’t know . I didn’t do it .
#100959
A
has taken away
B
was taking away
C
had taken away
D
is taking away
—You were out when I dropped in at your house. —Oh, I ________ for a friend from England at the airport.
#104756
A
was waiting
B
had waited
C
am waiting
D
has waited
Want to buy that kind of cloth because I the cloth well.
#101067
A
have told; washed
B
have been told; washes
C
was told; washed
D
have been told; is washed
The person we talked about ____ our school last week．
#104467
A
visiting
B
will visit
C
visited
D
has visited