单项选择题

A．Meeting with his professors.
B．Doing extra work in the chemistry lab.
C．Writing papers for his classes.
D．Working overtime as a librarian.
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单项选择题
A．Instructions.B．Medicine.C．Money.D．The draft of his speech.
A．Instructions.
B．Medicine.
C．Money.
D．The draft of his speech.
单项选择题
A．She’d like to have the window open.B．She likes to have the air conditioner on.C．The air is heavily polluted.D．The window is already open.
A．She’d like to have the window open.
B．She likes to have the air conditioner on.
C．The air is heavily polluted.
D．The window is already open.
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