The teacher asked a difficult question but Tom finally managed toa good answer.A. put up

问题补充：

The teacher asked a difficult question, but Tom finally managed toa good answer.

A. put up with

B. keep up with

C. come up with

D. go through with

答案：

A. put up with

B. keep up with

(答案→)C. come up with

D. go through with

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