问卷名称There be句型

你了解There be句型吗？

你知道There be 句型的结构吗？

There be句型的否定句怎样变？

. There be句型的疑问句怎样变？

There ( )a book on the desk.

There ( )some water in the cup.

There be 句型要保持（ ）原则。

There ( )many flowers in front of house.

There ( )a pen and some books on the chair.