What is your uncle?(改为同义句)            
      does your uncle         ?
The desk is behind the chair. (改为同义句)    
The chair is               of the desk.
The cat is under the chair.(对划线部分提问)   
              the cat?
He reads English aloud every morning.(用now替换every morning)
He              English aloud now.
He is playing computer games now.(变为一般疑问句) 
             playing computer games now？