---Mike must have known that.---No, he ________. How _______ he?
#87806
A
mustn’t, must
B
may not, might
C
couldn’t, can
D
needn’t, need
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--I'm told that John had another car accident this morning.--I believe not. He _________so careless.
#90014
A
shouldn't have been
B
wouldn't have been
C
couldn't have been
D
mustn't have been
My mother ________ always wave goodbye to me while I was leaving for school.
#87627
A
should
B
must
C
could
D
would
It’s a shame ______ able to give them any advice.
#87215
A
not to have been
B
to have not been
C
to have been not
D
to not have been
Though it is the first time they have met, they talked as if they _____ friends for many years.
#86663
A
are
B
were
C
had been
D
have been
______ him well, I would have invited him to my birthday party.
#87956
A
Had I known
B
Should I know
C
If I know
D
If I knew