题目内容
— You realize that you were driving at 100 miles per hour,don't you?
— No,officer,I ________ have been.This car can't do more than 70.
[ ]
A.needn't
B.couldn't
C.shouldn't
D.might not
答案:B
解析:
解析:
|
考查情态动词,have been后省略了driving at 100 miles per our.情态动词couldn't — have done表示不可能做了某事。 |
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