look forward to 的用法是什么?是I'm look forward to doing 还是I look forward to dong 是He is look forward to doing 还是he look forward to doing 要随人称变化而变化吗?加不加s?

分类: 作业答案 • 2021-12-19 11:08:01

问题描述：

look forward to 的用法是什么?
是I'm look forward to doing 还是I look forward to dong
是He is look forward to doing 还是he look forward to doing 要随人称变化而变化吗?加不加s?

答