Thisis________envelope.Thatis_

发布时间:2020-07-28 03:11:08

This is ________ envelope. That is ________ stamp.A.an; aB.a; anC.an; anD.a; a

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A解析envelope 开头的音素的元音,故用an,stamp 开头的音素是辅音,用a.
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