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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热门试题

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.

填空题

Exercise has long been recommended to ______.

Questions 11 to 18 are based on the conversation you have just heard. 您的浏览器不支持 audio 元素。

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