按要求改写句子。(15分)
（1）There are girls in the classroom.(改为一般疑问句)
________ ________   girls  in  the  classroom?
（2）They  are flying____kites．(就画线部分提问)
________are they________？
（3）spring, the, welcome, to, sing, the, birds (连词成句)
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（4）These  are  some  English  books. (改为单数句)
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（5）There's a  peach  tree  in  the  yard. (改为复数句)
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