单项选择题

The tree fell down（）she had time to run away.

A. as
B. after
C. before
D. until

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单项选择题
With summer coming on, the weather gets hot（）

A. day and day
B. day and night
C. day by day
D. day in and day out
单项选择题
--Do you know that Mr. Zhang has been ill for days-- Yes. I wonder if he is（）better now.

A. much
B. some
C. any
D. no
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