题目内容
【题目】birds singing the tree are in the (.)
【答案】The birds are singing in the tree.
【解析】birds鸟， singing唱歌， tree树， in在。根据所给单词及标点符号判断，该句子是现在进行时的肯定句。句意是：鸟正在树上唱歌。所以答案是The birds are singing in the tree.
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题目内容
【题目】birds singing the tree are in the (.)
【答案】The birds are singing in the tree.
【解析】birds鸟， singing唱歌， tree树， in在。根据所给单词及标点符号判断，该句子是现在进行时的肯定句。句意是：鸟正在树上唱歌。所以答案是The birds are singing in the tree.
