单项选择题

Questions 23 to 25 are based on the conversation you have just heard.

A．He’s unwilling to be immunized.
B．He is exposed to viruses in the crowd
C．He forgets to take his medicine.
D．He doesn’t dress warmly enough.
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单项选择题
A．Reusing and recycling paper.B．Prohibiting tree cutting.C．Planting more trees than they cut down.D．Reducing emissions of carbon dioxide.
A．Reusing and recycling paper.
B．Prohibiting tree cutting.
C．Planting more trees than they cut down.
D．Reducing emissions of carbon dioxide.
填空题
C
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