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I had been working on math for the whole afternoon and the numbers before my eye

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I had been working on math for the whole afternoon and the numbers before my eye

I had been working on math for the whole afternoon andthe numbers ________ before my eyes.

A. swim                       B.swam                                C.swimming                        D.had swum

 

试题答案

【答案】

B

【解析】

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