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
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If the firefighters ________ in time, the fire would have resulted in many deaths in the hotel.
#87438
A
wouldn’t have arrived
B
hadn’t arrived
C
didn’t arrive
D
shouldn’t arrive
You have a big mouth,Tom. You have told everybody the secret.
#87700
A
shouldn’t
B
mustn’t
C
can’t
D
mightn’t
______ it would be silly to argue any longer ．
#87963
A
Was that true
B
If that was true
C
Should that be true
D
Could that be true
– Is John coming by train?– He should, but he _______ not. He likes driving his car.
#87607
A
must
B
can
C
need
D
may