单项选择题

How are the activities different from the experiments

A. Activities are to be done after class.
B. More instructions are given for the activities.
C. Equipment in the lab may be used for activities.
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What is the man wearing
A. A coat.
B. A suit.
C. A shirt.
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Who’s Peter
A. He’s the woman’s son.
B. He’s the man’s son.
C. He’s the woman’s student.
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