Does Mr.Brown enjoy living in China?Could you tell us?（合并成一句

Does Mr.Brown enjoy living in China?Could you tell us?（合并成一句话）
Maybe the girl with a pair of glasses lost her keys.(同义句转换)
What about going for a walk.(同义句转换)
I am sure I will not eat fast food any more.(同义句转换)
They spent almost one and half years building a tall building.(同义句转换)
help me!

Does Mr.Brown enjoy living in China?Could you tell us?（合并成一句话）
Could you tell us if Mr. Brown enjoys living in China?
Maybe the girl with a pair of glasses lost her keys.(同义句转换)
The girl with a pair of glasses may lose her keys.
What about going for a walk.(同义句转换)
Let's go for a walk.
I am sure I will not eat fast food any more.(同义句转换)
I make sure I will eat fast food no more.
They spent almost one and half years building a tall building.(同义句转换)
It cost them almost one and half years to build a tall building.