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          Scientists should _____ new ways to solve the pollution problem.

          A. catch up with
          B. come up with 
          C. keep up with
          D. make up with 
          			
          

			
			
			
		
          



							
          
				相關習題
			
          	
						
          
			
          
				科目：初中英語
				來源：0103    期中題
				題型：單選題
			
          
									
          Scientists should _____ new ways to solve the pollution problem.
          

          [     ]
          A. catch up with
          B. come up with 
          C. keep up with
          D. make up with 
          

			
          
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