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It is not easy ( )to drive a bus well 括号里选什么?learn\to learn\learning\learns

分类: 作业答案 • 2021-11-13 00:37:15

问题描述：

It is not easy ( )to drive a bus well 括号里选什么?learn\to learn\learning\learns

答

to learn

It's + 形容词 +to do