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          【題目】The palace caught fire three times in the last century, and little of the original building _______ now.
          A.remains
          B.is remained
          C.is remaining
          D.has been remained
          

			
          

			
          
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          【題目】 ______ scientists have learned a lot about the universe, there is much we still don't know.
          A.Once
          B.Since
          C.Though
          D.Unless
          

			
          

			
          
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          【題目】— I don't understand why you didn't go the lecture yesterday afternoon?
          — I am sorry. But I _________ my homework.
          A.was doing
          B.had done
          C.would do
          D.am doing
          

			
          

			
          
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          【題目】If you come to visit China, you will ______ a culture of amazing depth and variety.
          A.develop
          B.create
          C.substitute
          D.experience
          

			
          

			
          
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          【題目】The workers insisted that they ______ a free lunch every noon, and the boss had to give in.
          A.are given
          B.being given
          C.will be given
          D.be given
          

			
          

			
          
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          【題目】— Can you come to a party on Saturday, Peter?
          — Oh, ______I'm already going out, I'm afraid.
          A.what a pity!
          B.don't ask!
          C.how come?
          D.so what?
          

			
          

			
          
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          【題目】If I _____it with my own eyes ,I wouldn't have believed it.
          A.didn't see
          B.weren't seeing
          C.wouldn't see
          D.hadn't seen
          

			
          

			
          
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          【題目】How does the man feel about the test?
          A.Confident.B.Worried.C.Sleepy.
          

			
          

			
          
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          【題目】I truly believe ______beauty comes from within.
          A.that
          B.where
          C.what
          D.why
          

			
          

			
          
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          【題目】Could you tell me how long ______ the navy?
          A.you have joined
          B.have you joined
          C.you have been in
          D.have you been in
          

			
          

			
          
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