. higher and higher until it was a small dot in the sky. A. It up flewB. Up flew itC. Up

问题补充：

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, higher and higher,until it was a small dot in the sky.

A. It up flew

B. Up flew it

C. Up it flew

D. Up did it fly

答案：

A. It up flew

B. Up flew it

(答案→)C. Up it flew

D. Up did it fly

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