单项选择题

（）, and you will have an answer soon.

A.Thinking it over
B.Think it over
C.Think over it
D.To think it over

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（） apple fell down from the tree and hit him on （） head...

单项选择题（） apple fell down from the tree and hit him on （） head.

A.An；the
B.The；the
C.An；/
D.The；/