I've run for 20 minutes every morning___(keep) in good health.

分类: 作业答案 • 2022-01-09 18:03:21

问题描述：

I've run for 20 minutes every morning___(keep) in good health.
这里用 to keep还是keeping? 为什么?

答

to keep
因为我每天早晨跑步的目的是为了保持健康,表目的用不定式to.