For the engine to work, the green button be in the “on” position.
#87838
A
can
B
would
C
must
D
might
推荐题目
, the forest fire would have been discovered much earlier.
#87801
A
But for their care
B
Had they been more careful
C
Without their care
D
If they were careful
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
You look smart in this new jacket. That old one ______ thrown away many years ago.
#90305
A
ought to be
B
ought to have been
C
would be
D
would have been
You surprise me! You ________ fall asleep in such an important meeting.
#86584
A
must
B
may
C
can
D
should
The door . Better have it repaired .
#88993
A
isn’t shut
B
hasn’t been shut
C
won’t be shut
D
won’t shut