单项选择题

If I ______ that your business was growing so rapidly, I wouldn’t have been worried about it.

A. know
B. knew
C. had known
D. have known
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单项选择题
Customers consider location as the first factor when ______ a decision about buying a house.
A. make
B. made
C. to make
D. making
单项选择题
A. Thank you. B. Sorry, he is not here. C. I’m sorry. D. My name is Jack.
A. Thank you.
B. Sorry, he is not here.
C. I’m sorry.
D. My name is Jack.
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