单项选择题

They were angry because you ______ your promise.

A. didn’t keep

B. have not kept
C. don’t keep

D. had not kept
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单项选择题
A. Good idea. B. Thank you.C. Yes, it’s very hot. D. That’s all right.
A. Good idea.
B. Thank you.
C. Yes, it’s very hot.
D. That’s all right.
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