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[英语天天练习] 英语天天练习区20071230

英语天天练习区20071230


_____ a certain doubt among the students as to the necessity of the work.

(A) It existed      (B) There existed     (C) They existed      (D) There existing

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i don't know
a?

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is a ?```````````````````
互相交流`互相学习

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i  know`````````
互相交流`互相学习

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My choice is B

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Yes!!!Come on!

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B,i'm sure .

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B...um...i think

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B, I choose.

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C,I don't know

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