题目内容

I’m so sleepy. I’ve been awake____4:00 this morning.

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Kyoko was an exchange student in Peru ____a whole semester.

Marcus has lived in Dubai ____2010.

How are you? I haven’t seen you ____high school.

office2010,一个excel文件可以有多少张工作表?

A. 1
B. 3
C. 255
D. 几万

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