Don’t
Doesn’t
Aren’t
Can’t
第1题:
A. mustn’ t
B. can’ t
C. don’ t
D. needn’ t
第2题:
This is the deck cargo. ________ stow it in the holds
A.Not
B.Can’t
C.Doesn’t
D.Don’t
第3题:
A.won't
B.mustn't
C.needn't
D.shouldn't
第4题:
A.shouldn't
B.mustn't
C.don't have to
D.can't
第5题:
She_____ answer my phone call yesterday.
A. doesn't
B. didn't
C. wasn't
第6题:
)7.—Was there a nice picture on the wall?
—______.
A. No,there wasn't
B. No,there weren't
C. No,there isn' t
D. No,there aren't
第7题:
—________is your sister?
—Sorry,l don-t know.
第8题:
A.isn’t
B.wasn’t
C.doesn’t
D.hasn’t
第9题:
A、haven’t
B、hasn’t
C、isn’t
D、aren’t
第10题:
A.don't
B.can't
C.couldn't
D.didn't