Lucy and Lily have long hair.Am i right?A.Yes,they are.B.Yes

題目：

Lucy and Lily have long hair.Am i right?A.Yes,they are.B.Yes ,they do.C,yes they does.

解答：

答案：B
前面是主語是：Lucy and Lily ,所以後面的用they,have是實義動詞,所以後面用助動詞do.