单项选择题

A．Employ them as lab assistants.
B．Teach classes at their high school.
C．Help them with their studies.
D．Pay them for participating in the study.
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单项选择题
A．He always gets other people to pay for his drinks.B．He is full of jokes and fun.C．He always makes people feel happy.D．He does not give much thought for tomorrow.
A．He always gets other people to pay for his drinks.
B．He is full of jokes and fun.
C．He always makes people feel happy.
D．He does not give much thought for tomorrow.
单项选择题
A．To paint the trash cans.B．To pick up and sort the trash.C．To pick up and deliver the trash.D．To work in the recycling center.
A．To paint the trash cans.
B．To pick up and sort the trash.
C．To pick up and deliver the trash.
D．To work in the recycling center.
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