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【单选题】

I don’t think you have made great mistakes, _______?

A.
do you
B.
don’t you
C.
have you
D.
haven’t you
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参考答案:
参考解析:
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举一反三

【单选题】She was grateful _____ George _____ all _____he had done.

A.
to; for; that
B.
to; for; what
C.
for; to; that
D.
for; to; what