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				32．A．work         B．works        C．working        D．worked			【查看更多】
			


		
           
          


		
          
		
          題目列表(包括答案和解析)
          

		
		
          

          


          
	
          				
          
									
          

          There are many robots ________ in the factory.
          

          [　　]
          

          

          A．work
          B．works
          

          C．working
          D．worked
          

          

          

			
          
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          We have some problems ________ it out．
          

          

          [　　]
          

          A．work
          

          

          B．works
          

          

          C．working
          

          

          D．worked
          

          

          

			
          
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          Dr. Ma used to __________in a hospital.
          


          
 
          
  
  
          A．work
          
            		
  
  
          B．works
          
            		
  
  
          C．worked
          
            		
  
  
          D．working
          
            		
 
          

          


           
          

			
          
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          You will be successful if you ________ hard.
          

          [　　]
          

          

          A．work
          B．worked
          

          C．working
          D．works
          

          

          

			
          
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          I'm too tired and I can't keep _______．
            
          A．work                B．worked              C．working               D．works
          

			
          
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