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单项选择题

Don’t think you can learn grammatical rules ______ you learn the multiplication tables.

A. likely
B. like
C. alike
D. dislike
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热门试题

单项选择题I don’t think he has finished the term paper, ______

A. had he
B. do I
C. has he
D. hasn’t he

单项选择题The Wright brothers ______ the design of the first successful motor-powered plane.

A. confronted
B. concealed
C. converted
D. conceived