问题

Paul doesn’t know _________ about his problems.
A:up
B:off
C:on
D:over;
B:off
C:on
D:over;
正确答案是:
同类题型
He is no fool at all,________,he is the smartest boy I have ever seen
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Don’t worry about him, He is _____ to drive a car.
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210. I found my _____ open when I opened mydrawer. Someone must have read what I wrote in it.