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19.-What's the noise outside?
-Some children_____ hide-and-seek in the yard.(  )
A.were playingB.are playingC.have playedD.played

分析 ---外面什么声音,这么吵?
---有些孩子正在院子里玩捉迷藏.

解答 答案:B
根据问句"What's the noise outside"可知,问的是外面正在发生的事情.所以回答要用进行时态,即be+doing.主语为"-Some children"故选B.

点评 本题考查现在进行时.考生要掌握时态的基本概念和用法,并能结合具体语境来选择.

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