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题型：单选题题类：常考题难易度：容易

不定冠词：表示“每一”，相当于every

We'd better drink eight cups of water day.

A、the B、an C、a D、/

举一反三

Cotton of kind stored together.

Mr. Smith who I didn't know came to visit you when you out.

He is regarded as contemporary Tao Yuanming.

She will come back in ______ minute.

I played football with Ben on ______ cool afternoon.

This is interesting story for the kids.

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