There are （sixteen）boys in the room.（对括号部分提问）There are eleven numbers on the blackboard.（改为一般疑问句）There are （fifteen desks）in the classroom.（对括号部分提问）There is a blackboard on the wall.（变为否定句）
问题描述：
There are （sixteen）boys in the room.（对括号部分提问）
There are eleven numbers on the blackboard.（改为一般疑问句）
There are （fifteen desks）in the classroom.（对括号部分提问）
There is a blackboard on the wall.（变为否定句）
答
Are there eleven numbers on the blackboard?
What's in the classroom/
There isn't a blackboard on the wall
答
1 How many boys in the room?
2 Are there eleven numbers on the blackboard?
3 How many desks in the classroom?
4 There is not a blackboard on the wall.
答
How are boys are there in the room?
Are there eleven numbers on the blackboard?
What are there in the classroom?
There isn't a blackboard on the wall.