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          Only when people have enough to eat and plenty to wear _______ to talk about environmental protection.

          1. A.
            it makes sense
          2. B.
            does it make sense
          3. C.
            that it makes sense
          4. D.
            do they make sense
          

			
          

			
          
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          Through thorough investigation, Dr. John Snow was finally able to prove that the outbreak of Cholera _____ people’s drinking of polluted water

          1. A.
            was close linked with
          2. B.
            closely linked to
          3. C.
            was close connected with
          4. D.
            was closely linked with
          

			
          

			
          
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          By careful observation and precise calculation,  Nicolaus Copernicus _____ that there is no one center in the universe and the sun is the center of the solar system.

          1. A.
            believed
          2. B.
            thought
          3. C.
            concluded
          4. D.
            imagined
          

			
          

			
          
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          The manager and general engineer _____ very strict _____ his employees and ____ his work as well.

          1. A.
            is; with; in
          2. B.
            are; with; in
          3. C.
            is; with; with
          4. D.
            are; in; in
          

			
          

			
          
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          Nicolaus Copernicus’ discovery about the universe is ______, which ______later achievements in astronomy science.

          1. A.
            ambitious; gave birth to
          2. B.
            enthusiastic; resulted in
          3. C.
            obvious; resulted in
          4. D.
            revolutionary; led to
          

			
          

			
          
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          We the Chinese are not to be ______, ________the situation is.

          1. A.
            beaten; however disastrous
          2. B.
            defeated; whatever disastrous
          3. C.
            beaten; whatever disastrous
          4. D.
            lost; however disastrous
          

			
          

			
          
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          People should be cautious ______their personal information when surfing the Internet so as to prevent certain computer viruses ______ it.

          1. A.
            about; to steal
          2. B.
            of; stealing
          3. C.
            with; to steal
          4. D.
            to; from stealing
          

			
          

			
          
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          __________ catching the sight of policemen, she can't help shaking with fear because of that terrible experience.

          1. A.
            On
          2. B.
            By
          3. C.
            At
          4. D.
            For
          

			
          

			
          
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          Roller skating, now easy and fun, changed because of a man _______ Joseph Merlin.

          1. A.
            naming
          2. B.
            named
          3. C.
            named in
          4. D.
            with name
          

			
          

			
          
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          The newly-­discovered star was named ________ a Chinese astronomer ________ honor of his contributions to astronomy.

          1. A.
            for；in
          2. B.
            after；for
          3. C.
            as；in
          4. D.
            after；in
          

			
          

			
          
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