单项选择题

A．Do research in the library.
B．Grade homework sets.
C．Teach an introductory economic course.
D．Make up homework problem.
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单项选择题
A．Her brother did not arrive this morning.B．She painted her brother’s room.C．Her brother painted the room for her.D．She and her brother painted the room together.
A．Her brother did not arrive this morning.
B．She painted her brother’s room.
C．Her brother painted the room for her.
D．She and her brother painted the room together.
单项选择题
A．Because something was wrong.B．Because she wanted to pay her bill.C．Because she needed to order her meal.D．Because she needed to be seated.
A．Because something was wrong.
B．Because she wanted to pay her bill.
C．Because she needed to order her meal.
D．Because she needed to be seated.
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