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最佳答案：They are singing in the classroom.
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最佳答案：sing and dance
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最佳答案：你好，译为 Birds are singing stand by the window.
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最佳答案：He heard the birds singing in the tree,
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最佳答案：ecause we dance and sing at school
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最佳答案：NO DANCING OR SINGING
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最佳答案：It sounds like birds singing
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最佳答案：I want to make a appointment with you tonight,could (或者 shall) we go to sing tog
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最佳答案：唱歌和跳舞sing and dance一张生日卡片A birthday card有疑问欢迎追问,为表公平,【如有帮助】请采纳【正确】的【回答】
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最佳答案：We are sing songWe are see the Christmas tree