单项选择题

It was in that lab ______ they did the chemical experiment.

A. which
B. where
C. that
D. what
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单项选择题
A.You are welcome. B. That is all.C. Sorry, I will have a meeting. D. Yes, of course.
A.You are welcome.
B. That is all.
C. Sorry, I will have a meeting.
D. Yes, of course.
单项选择题
A. In a company. B. In a hospital. C. On a bus. D. In a department store.
A. In a company. B. In a hospital.
C. On a bus. D. In a department store.
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