Ann returned the book to the library yesterday.改为一般疑问句后return要加s吗?
问题描述：
Ann returned the book to the library yesterday.改为一般疑问句后return要加s吗?
答
不要。应该把returned还原为动词原形return.
其一般疑问句为：Did Ann return the book to the library yesterday? (此时的过去式由did替代了）
答
不用。
Ann returned the book to the library yesterday.
一般疑问句：Did Ann return the book to the library yesterday? 格式：Did+原形
答
Did Ann return the book to the library yesterday?过去式没s的，
答
Did Ann return the book to the library yesterday?
不用加s。
答
Did Ann return the book to the library yesterday?
不需要哦~因为does do did这类助动词后面都用原型哦~这里是过去所以用did