单项选择题

A．Make up homework problems.
B．Do research in the library.
C．Teach an introductory economies course.
D．Grade homework sets.
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单项选择题
A．It should be higher.B．It’s very good.C．It’s the same as the post office pays.D．It varies according to the person’s experience.
A．It should be higher.
B．It’s very good.
C．It’s the same as the post office pays.
D．It varies according to the person’s experience.
单项选择题
A．It’s too hot to go running.B．She already went jogging.C．Her jogging suit isn’t warm enough.D．She wants to exercise before she runs.
A．It’s too hot to go running.
B．She already went jogging.
C．Her jogging suit isn’t warm enough.
D．She wants to exercise before she runs.
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