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          The teacher is already standing here. Do you know when she ______?
          A．comesB．came
          C．is comingD．was coming
          			
          


			
          

		
          
		
		
	
          
		
          
			
          
				
          
				
          B

          試題分析：句意:老師已經(jīng)站在這兒了。你知道她是什么時(shí)候來的嗎？come來，是一個(gè)動(dòng)詞。根據(jù)句意可知，老師現(xiàn)在已經(jīng)站在這里了，因此來這個(gè)動(dòng)作應(yīng)該是過去發(fā)生的，應(yīng)該用一般過去時(shí)，故選B。A是一般現(xiàn)在時(shí)，表示經(jīng)常性或習(xí)慣性的動(dòng)作；C是現(xiàn)在進(jìn)行時(shí)，表示此刻正在發(fā)生的事情；D是過去進(jìn)行時(shí)，表示過去某時(shí)正在發(fā)生的動(dòng)作。
          				
          
							
          
			
          
			
          
			
			
          
		
          
	
          

		
          

		





			
          
		
          
		
				
          
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