优优班--学霸训练营 > 知识点挑题
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            • 1.
              If you don"t understand something,you may research,study,and talk to other people _______ you figure it out.(  )
              A.because
              B.though
              C.until
              D.since
            • 2.
              Located        the Belt meets the Road,Jiangsu will contribute more to the Belt and Road construction.
              A.why
              B.when
              C.which
              D.where
            • 3.
              That young man is honest,cooperative,always there when you need his help.______,he"s reliable.(  )
              A.Or else
              B.In short
              C.By the way
              D.For one thing
            • 4.
              ______ the average age of the population increases,there are more and more old people to care for.(  )
              A.Unless
              B.Until
              C.As
              D.While
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