问题描述：
He read the book in the morning ____ the whole morning.a.at b.on c.in d.for
不好意思，选项为A.since B.for C.in D.before
______the evening of Octorber.2th
at on in for
不好意思，选项为A.since B.for C.in D.before
______the evening of Octorber.2th
at on in for
问题解答：
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