句型转换

题目

句型转换
I saw the stamp on this letter（变为一般疑问句）
We put the box on its side（变为祈使句）
He sent the stamp back to me.(变为否定句)
Last summer she grew a lot of vegetable（变为一般疑问句）

答案

Did you see the stamp on this letter?
Put the box on its side!
He didn't send the stamp back to me.
Did she grow a lot of vegetable last summer?