China's present environment situation is from bad to worse and if we _________ now to protect the environment, we’ll live to regret it.
#99934
A
hadn’t acted
B
haven’t acted
C
don’t act
D
won’t act
推荐题目
A series of stimulus policies and supportive measures taken by the government ________ to promote change in the economic environment in this area.
#99447
A
are expecting
B
are expected
C
is expecting
D
is expected
Good heavens! There you are! We _____ anxious about you, and we _____ you back throughout the night.
#104714
A
are; expect
B
were; had expected
C
have been; were expecting
D
are; were expecting
The woman sitting next to me ________ very nervous, for she had never travelled by air.
#99451
A
is
B
has been
C
was
D
had been
---- What’s that noise? ---- Oh, I forgot to tell you. The new machine ______.
#102011
A
was tested
B
will be tested
C
is being tested
D
has been tested