there are （many trees） behind the house对划线部分提问

there are （many trees） behind the house对划线部分提问
there are （many trees） behind the house对划线部分提问

there are （many trees） behind the house对划线部分提问
What is there behind the house?

what behind the house there?

What's behind the tree?
给分啦！保证是对的！！

What is there behind the house?
当不知道所问的东西是单数还是复数的时候BE动词都用is