--The mistake_____, I had been more careful.---But you weren’t at that time.
#86594
A
might have avoided
B
would avoid
C
would be avoided
D
might have been avoided
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John didn’t feel well yesterday; otherwise he ______ to see his friend off at the airport.
#87189
A
came
B
would come
C
would have come
D
should be coming
I ___, but I didn't think you were serious.
#89029
A
shouldn't laughed
B
wouldn't laugh
C
shouldn’t have laughed
D
needn’t have laughed
Our monitor requested that ________.
#87441
A
all the class studied more carefully the problem
B
the problem was more carefully studied
C
with great care the problem could be studied
D
all the class study the problem more carefully