do you do为什么是

do you do为什么是 How do you do?的答句为什么可以是What do you do Do you like to do sth?为什么回答是Yes ,I do.不是Yes,I like. 为什么是Do you want to know what I do?而不是what am do? 外国人为什么说 how do you do What do you do ()the evening?为什么 where do you live为什么用do Do you understand what did she said为什么错?为什么是Do you understan Yes I do.Do you like biscuits?Yes I do 为什么回答的是I do,不是I like, 为什么是are you ready 而不是do you ready? where do you think you are为什么是宾语从句 为什么是how often do you shop 而不是how often do you go shop