单项选择题

Small children often wonder what keeps the earth () in space.

A. in order
B. in place
C. in nature
D. in practice

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单项选择题
The author’s purpose in writing this story is to ().

A. inform
B. entertain
C. educate
D. satirize
单项选择题
There is a Chinese restaurant in the (). Let’s go there for a change.

A. neighborhood
B. society
C. dark
D. substance
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