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试题详情及答案解析
My cousin told me that he could eat three big apples _____.
A.at timeB.some time
C.at a timeD.some times
答案:C
试题分析:句意:我的表弟告诉我,他能一次吃三个大苹果。at a time一次;some time一段时间;some times几倍或多次。结合句意,故选C。
考点:考查冠词的用法。