单项选择题

Questions 11 to 18 are based on the conversation you have just heard.

A．He couldn’t find Professor Smith’s classroom.
B．Professor Smith speaks too slowly.
C．He didn’t understand Professor Smith’s lecture.
D．Professor Smith kept the class late.
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单项选择题
A．Collecting objects on the beach.B．Creating computer models.C．Mapping currents in the ocean.D．Tracking water pollution.
A．Collecting objects on the beach.
B．Creating computer models.
C．Mapping currents in the ocean.
D．Tracking water pollution.
单项选择题
A．Writing papers for his classes.B．Meeting with his professors.C．Doing extra work in the chemistry lab.D．Working overtime as a librarian.
A．Writing papers for his classes.
B．Meeting with his professors.
C．Doing extra work in the chemistry lab.
D．Working overtime as a librarian.
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