Where have you been,Alice 为什么用been Alice opften helps do some cooking after work.为什么用do

来源：学生作业帮助网编辑：作业帮时间：2024/05/17 21:22:13

（1）因为alice已经回来了,所以用been,意为你去哪了?或你去过哪了.
（2）do some cooking 是固定搭配,因为help是单数第三人称,所以do为原型.

Where have you been,Alice ? 是问她去过那里？用现在完成时。
Alice opften helps do some cooking after work.是经常性发生的动作，用一般现在时

你好。很简单
help sb (to) do sth------(to) do sth做宾语补足语
help (to) do sth------do与help一起做复合谓语

完成时，所以用have been；
help sb do sth,固定搭配

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