单项选择题

Questions 19 to 22 are based on the conversation you have just heard.

A．They should not share the same space.
B．They should avoid touching each other.
C．They’d better have an injection for prevention.
D．They should wear the masks.
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单项选择题
A．The rain stopped soon.B．It has been raining a day.C．It is about to rain.D．The rains are very heavy.
A．The rain stopped soon.
B．It has been raining a day.
C．It is about to rain.
D．The rains are very heavy.
单项选择题
A．To find safer living places.B．To search for food.C．To leave the colder place.D．To find more friends.
A．To find safer living places.
B．To search for food.
C．To leave the colder place.
D．To find more friends.
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