单项选择题


Questions 19 to 21 are based on the conversation you have just heard.

A．Giving a lecture.
B．Discussing political science.
C．Working on a science problem.
D．Reading twentieth-century literature.
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单项选择题
A．She often practices taking notes.B．She often practices oiling the gate.C．She often practices singing high notes.D．She often practices overcoming her weakness.
A．She often practices taking notes.
B．She often practices oiling the gate.
C．She often practices singing high notes.
D．She often practices overcoming her weakness.
单项选择题
A．A chemistry experiment.B．A class that the woman is taking.C．A job possibility the woman expecting.D．A study that their chemistry professor did.
A．A chemistry experiment.
B．A class that the woman is taking.
C．A job possibility the woman expecting.
D．A study that their chemistry professor did.
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