Without the ‘ greenhouse effect’, the earth ____ be about thirty-three degrees Celsius cooler than it is.
#87137
A
should
B
would
C
will
D
must
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— It’s ten years since I met you last time. I ________ you at all.—I wouldn’t have, either, if someone ________ you by name.
#87417
A
didn’t recognize; didn’t call
B
haven’t recognized; didn’t call
C
can’t recognize; had called
D
didn’t recognize; hadn’t called
We      last night, but we went to the party instead.
#87198
A
must have studied
B
might study
C
should have studied
D
would study