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          You are not supposed ________ in public.
          A. smoking   B. to smoke   C. to smoking
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B

          試題分析:考查固定短語(yǔ)be supposed to do 應(yīng)該做某事。故選B。
          點(diǎn)評(píng)：本題中to是不定式符號(hào)，不是介詞，需注意區(qū)分。熟記一些基礎(chǔ)短語(yǔ)、句式對(duì)答題有事半功倍的效果，平時(shí)注意積累。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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