单项选择题

She should stop working; she has a headache because she（）too long.

A. has been reading
B. had read
C. is reading
D. read

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What is the favorite food in the United States The favorite food in the United States is（）。
单项选择题
Mike’s uncle insists（）in this hotel.

A. staying not
B. not to stay
C. that he would not stay
D. that he not stay
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