My pain ___________ obvious the moment I walked into the room, for the first man I met  asked me pitifully:" Are you feeling all right?"
#90020
A
must be
B
must have been
C
could be
D
could have been
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
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