Mary sings English songs well and _.

题目

Mary sings English songs well and _.
Mary sings English songs well and _.A.Jane does too B.either does Joes C.so Jane does.D.so does Jane
我知道选D，但为什么A不对

答案

D,因为在这里does作为动词使用,必须跟宾语,而A没有宾语,在D中,so指代sings English songs well,作为宾语,所以选D