They must have been here the day before yesterday,____? 
#89896
A
mustn’t they
B
didn’t they
C
mustn’t have they
D
had they
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 If we __________ computers, life __________ very different now.
#86654
A
didn’t have; would have been
B
wouldn’t have; was
C
didn’t have; would be
D
wouldn’t have; had been
If it      the climate, I would stay here much longer.
#86441
A
is not for
B
had not been for
C
were not for
D
would not be for