---Who put the cat in the box?---Andy______.A.did B.does C.is D.do

---Who put the cat in the box?---Andy______.A.did B.does C.is D.do
---Who put the cat in the box?---Andy______.
A.did B.does C.is D.do

---Who put the cat in the box?---Andy______.A.did B.does C.is D.do
答案：A
who 作主语,谓语动词用单数形式,而这里put没有加S,说明用的过去式,所以后面用did.

did
应该用过去时 助动词帮助省略回答
有不明白的地方再问哟，祝你学习进步，更上一层楼！ (*^__^*)

A
有不明白的地方再问哟，祝你学习进步，更上一层楼！ (*^__^*)