连词成句 is/behind/what/door/the/(?) is/a stove/there/comping site/at/the/(.)

问题描述:

连词成句 is/behind/what/door/the/(?) is/a stove/there/comping site/at/the/(.)

what is behind the door
什么在门后面?
there is a stove at the comping site.
有一个炉在野营营地.