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19.To _____ with his lessons,he’ll have to work all through the summeB.catch up C.catch r.

分类: 作业答案 • 2022-03-16 09:33:17

问题描述：

19.To _____ with his lessons,he’ll have to work all through the summeB.catch up C.catch r.

答

B
表示赶上、追上
这里是赶上课程进度