He doesn't like dancing,but his sister____.A,is B.likes C,does答案是选Cdoes.请问这个是做什么语法来解释的呢?

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He doesn't like dancing,but his sister____.A,is B.likes C,does答案是选Cdoes.请问这个是做什么语法来解释的呢?
He doesn't like dancing,but his sister____.A,is B.likes C,does
答案是选Cdoes.请问这个是做什么语法来解释的呢?

He doesn't like dancing,but his sister____.A,is B.likes C,does答案是选Cdoes.请问这个是做什么语法来解释的呢?
LUCY is not his sister,but lily is.
Mom didn't want the shirt,while lucy did.
都是用来代替前面的动词的,多读读就有语感了

用do代替前面出现过的一般动词,单三用does

does指代动词likes

前句使用的是实意动词,后句应用助动词does