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				21．--Listen! Is  professor giving a speech in class?--No.it          be him．He has gone to France．A．may not        B．mustn't        C．needn't         D．can't			【查看更多】
			


		
           
          


		
          
		
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          －Listen! Is Professor Bloom giving a speech in class?
          

          －No，it ________ be him．He has gone to France．
          

          

          [　　]
          

          A．may not
          

          

          B．mustn't
          

          

          C．needn't
          

          

          D．can't
          

          

          

			
          
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