--Tom．Why do you look so tired? --Because I often study late 10 o'clock at night． A．before——青夏教育精英家教网——

题目内容

--Tom．Why do you look so tired?

--Because I often study late _________ 10 o'clock at night．

A．before B．by C．until D．at

试题答案

1、C

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--Tom．Why do you look so tired?

--Because I often study late _________ 10 o'clock at night．

A．before B．by C．until D．at

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