第一个did在这里是be动词
do在这里表示“做”的意思
What did you did,没有这种表达方式.
就比如：What do（be动词） you do（做）?
l do（做） my homework.改为特殊疑问句的话（在my homework这里划线）：What do you do?也是加了一个be动词
为什么 过去做某事 用 what did you do
1个回答
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