More and more people have come to realize that if we had taken effective measures much earlier, the air quality ______ so seriously now.
#86958
A
is not polluted
B
would not be polluted
C
had not been polluted
D
would not have been polluted
推荐题目
John went to the hospital alone. If he_______ me about it, I would have gone with him.
#87020
A
should tell
B
tells
C
had told
D
told
--- Have you told him we have changed the plan?I _____ have, but I haven’t done it yet.
#86932
A
must
B
ought to
C
needn’t
D
can’t
—It’s hard to believe that Jack should have fought with the policeman.—Yes. If one ____ ask for trouble, it can’t be helped.
#87262
A
may
B
need
C
must
D
should