单项选择题

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A.Interview some high school students.
B.Finish their chemistry experiment.
C.Write their lab reports.
D.Find our professor Smith’s schedule.
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单项选择题
A.The man is a forgetful person.B.The typewriter is not new.C.The man can have the typewriter later.D.The man misunderstood her.
A.The man is a forgetful person.
B.The typewriter is not new.
C.The man can have the typewriter later.
D.The man misunderstood her.
单项选择题
A.They began to lay eggs.B.They changed their migration patterns.C.Their flying ability improved greatly.D.They become warm-blooded.
A.They began to lay eggs.
B.They changed their migration patterns.
C.Their flying ability improved greatly.
D.They become warm-blooded.
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