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7.Helen and I         good friends.(  )
A.isB.areC.amD.be

分析 海伦和我是好朋友.

解答 答案:B.考查系动词.句意"海伦和我是好朋友.".is单数.are复数.am与I连用.be原形.主语"海伦和我".两个人,因此用be动词复数are.答案是B.

点评 考查系动词,is是单数,are是复数,am通常与I连用,要结合语境,选择合适用法,注意人称及主语的单复数变化.

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