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            • 1．

              According to a report released recently, the major cause of air pollution inBeijingis vehicle emissions _________ in Shanghai the biggest problem is dust and heavy industry.

              A．as
              B．while
              C．although
              D．however
              难度：中等
              解析 收藏 试题篮
            • 2．

              Follow your doctor’s advice, ______ your illness will get better.

              A．then
              B．or
              C．and
              D．but
              难度：中等
              解析 收藏 试题篮
            • 3．

              Follow your doctor's advice, _____ your cough will get worse.

              A．or
              B．and
              C．then
              D．so
              难度：中等
              解析 收藏 试题篮
            • 4．

              很多人看上去很忙碌，其实没有任何效果。(seem)

              难度：中等
              解析 收藏 试题篮
            • 5． Study hard, ___ you can not go to college.

               

              A．and
              B．so
              C．or
              D．but
              难度：中等
              解析 收藏 试题篮
            • 6．

              他诚实、乐于助人，大家都认为他值得信赖。

              难度：中等
              解析 收藏 试题篮
            • 7． ________scores of times, but Derek still couldn’t understand how to use past participle in a concrete situation.
              A．Having explained
              B．Having been explained
              C．Though it was explained
              D．It was explained
              难度：中等
              解析 收藏 试题篮
            • 8． He told me his story in private，__________ nobody else knew what had happened to him．
              A．but
              B．so
              C．while
              D．or
              难度：中等
              解析 收藏 试题篮
            • 9． In order to improve English，_______________.
              A．Jenny's father bought her lots of tapes
              B．Jenny bought a lot of tapes for herself
              C．a lot of tapes were bought by Jenny
              D．a lot of tapes were bought by Jenny's father
              难度：中等
              解析 收藏 试题篮
            • 10． It was the belief _____ Alex Haley could find his root in Africa ____ made him decide to go to Zambia.
              A．/; which
              B．which; that
              C．that; which
              D．that; that
              难度：中等
              解析 收藏 试题篮
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