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    1．Listen! The students in the classroom. A. are singing B. sing C. singing D. is singing 【查看更多】

     

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     Listen, a small number of students ______ in the classroom.

    A. sing   B. sings   C. is singing    D. are singing

     

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    Listen, a small number of students ______ in the classroom.

    A. sing   B. sings   C. is singing    D. are singing

    查看答案和解析>>


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