pictures,on,there,three,the,are,wall(.)连词成句

题目

pictures,on,there,three,the,are,wall(.)连词成句
you,see,a,can,chair,on,the,ruler(.)连词成句
do,book,your,not,open(.)连词成句
Kate's,girls,class,are,in,twenty,there(.)连词成句
in,what is,front,classroom,of,your(?)连词成句

答案

There are three pictures on the wall.

You can see a ruler on the chair. 
Do not open your book.
There are twenty girls in Kate's class.
What is in front of your classroom?