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
There is ______ what the weather will be like.
#103479
A
not knowing
B
no knowing
C
not known
D
no known
I felt very excited because it was the first time I on the stage.
#99325
A
have acted
B
acted
C
act
D
had acted
Don't get that ink on your shirt, for it______.
#104325
A
won'twashout
B
won'tbewashedout
C
isn'twashedout
D
doesn'twashaway
Do let your mother know the truth. She seems to _______ everything.
#101018
A
have told
B
be told
C
have been told
D
being told