waste time/money ( ) doing sth.介词到底用in 还是 on Don't waste time on watching TV.Don't waste time in watching TV.到底哪个对呀?

分类: 作业答案 • 2021-12-19 16:24:12

问题描述：

waste time/money ( ) doing sth.介词到底用in 还是 on
Don't waste time on watching TV.
Don't waste time in watching TV.
到底哪个对呀?

答

用in.这是习惯用法没什么理由,一般都说
waste time in doing sth./ waste time on sth.