UC知道Do your homework,not watch TV.为什么do不能写成doing?
来源：百度知道 编辑：UC知道 时间：2024/06/15 20:36:19
因为这是一句祈使句,使用动词原形，省略主语。
就跟 Sit down，please.一个意思
如果用doing整个句子就没有谓语动词啦。
这是个祈使句，祈使句的动词要用原形！，你可以翻一下语法书
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《Do Your Ears Hang Low》 的歌词