优优班--学霸训练营 > 知识点挑题
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            • 1.

              Let"s not pick these peaches until this weekend__________________they get sweet enough to be eaten.( )

              A.ever since    
              B.as if
              C.even though 
              D.so that
            • 2.

              _______ you can sleep well, you will lose the ability to focus, plan and stay motivated after one or two nights.( )

              A.Once     
              B.Unless    
              C.If     
              D.When
            • 3.

              ______we don"t stop climate change, many animals and plants in the world will be gone.( )

              A.Although
              B.While    
              C.If     
              D.Until
            • 4.
              -Peter,please send us postcards ______ we"ll know where you have visited.
              -No problem.(  )
              A.but
              B.or
              C.for
              D.so
            • 5.
              ______ birds use their feathers for flight,some of their feathers are for other purposes.(  )
              A.Once
              B.If
              C.Although
              D.Because
            • 6.
              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
            • 7.
              Located        the Belt meets the Road,Jiangsu will contribute more to the Belt and Road construction.
              A.why
              B.when
              C.which
              D.where
            • 8.

              The most pleasant thing of the rainy season is _____ one can be entirely free from dust.(  )

              A.what
              B.that  
              C.whether   
              D.why
            • 9.

              I really enjoy listening to music ___ it helps me relax and takes my mind away from other cares of the day.(  )

              A.because   
              B.before      
              C.unless      
              D.until
            • 10.
              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
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