题目内容
Each lesson lasts for ________ hour. We have ________ break from 11:05 am until 11:15 am.
A.a; a B.an; the C.a; the D.an; a
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题目内容
Each lesson lasts for ________ hour. We have ________ break from 11:05 am until 11:15 am.
A.a; a B.an; the C.a; the D.an; a