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          —What should we do first if we want to develop our village?
           —A lot of new roads_____, I think.
           A. have to build    B. must build   C. must be built
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          C
          本題考查的是被動(dòng)語態(tài)，情態(tài)動(dòng)詞的被動(dòng)語態(tài)結(jié)構(gòu)為主語+情態(tài)動(dòng)詞+be +動(dòng)詞的過去分詞，故選C
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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