Listen! Mary in the room. A. sing B. sings C. is singing D. is sing 查看更多

 

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Listen! Mary ________ in the next room.

[  ]

A.sings        B.is singing

C.to sing        D.is sing

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Listen! Mary           in the next room.

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

 

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