難度:★  考點:動詞時態的用法
	
	  1.-Were you at home at9:00 last night?I called you but nobody answered.
	
	  -Sorry,I______at that time.
	
	  A.take a shower   B.took a shower
	
	  C.was taking a shower   D.am taking a shower
	
	  2.-Mum,I can't find my shoes.
	
	  -Hurry up!Your father______for us.
	
	  A.is waiting   B.waited   C.waits   D.will wait
	
	  3.- I was at the cinema  at nine o'clock yesterday evening.What about you?
	
	  -I________TV at home.
	
	  A.am watching   B.was watching   C.will watch   D.watched
        
