单项选择题

A．He’s already helped her a lot.
B．She knows he’s very busy.
C．She doesn’t need any help.
D．He doesn’t know enough chemistry.
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单项选择题
A．The environmental problem.B．The health problem.C．The educational problem.D．The international problem.
A．The environmental problem.
B．The health problem.
C．The educational problem.
D．The international problem.
单项选择题
A．The reward the prisoners get for their work.B．The comfortable accommodation.C．The way the prisoners are treated.D．The officers’ sympathy for the prisoners.
A．The reward the prisoners get for their work.
B．The comfortable accommodation.
C．The way the prisoners are treated.
D．The officers’ sympathy for the prisoners.
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