单项选择题


A．At a shop
B．At a restaurant
C．At a cinema
D．At the post office
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单项选择题
What does the word air in the first line mean ______.
A．To put a piece of clothing in a place that is warm or has a lot of air, so that it smells clean.
B．To let fresh air into a room.
C．To broadcast a program on television or radio.
D．To pump something.
单项选择题
What does the US Food and Drug Administration think of cloned products______.
A．It thinks it not safe to eat cloned products.
B．It thinks it safe to put cloned products on the market.
C．It suggests American people to eat cloned products instead of traditional food.
D．It is not sure whether it’s safe to eat cloned products.
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