题目内容
12. I don't know what the date was,but it was Sunday because everybody was at church.
12. Sunday前加a此句中的Sunday具有泛指含义,指"某一个星期天",因此用a。

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题目内容
12. I don't know what the date was,but it was Sunday because everybody was at church.
12. Sunday前加a此句中的Sunday具有泛指含义,指"某一个星期天",因此用a。