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            • 1. How long do you think ________ the computer company brings out a new product?(  )
              A.will it be when
              B.will it be until
              C.it will be before
              D.it will be that
            • 2.
              How long do you think ________ the computer company brings out a new product?(  )
              A.will it be when
              B.will it be until
              C.it will be before
              D.it will be that
            • 3.
              _____ I get home late,Grandma always leaves a light on for me.(  )
              A.Wherever
              B.However
              C.Whenever
              D.Whatever
            • 4. _________ fighting world hunger continues to be the matter of vital importance,more people now die from being overweight than from being underweight.(  )
              A.While
              B.If
              C.Unless
              D.Once
            • 5.

                  My dad and I went to the park last Sunday. 61    When we walked there, we saw dogs everywhere. We saw a sign and it said "Dog Show". 62  我们决定去观看。

                  There were different kinds of games at the dog show. One of the games was "Show". The judges (评判员) watched how the dog looked and acted. 63    一只白色的狗赢得了比赛。 In another game, the dogs had to follow a man's orders. The dogs had to jump over different kinds of things and run to the destination (终). One black dog ran quickly, but he could not follow the orders, so he did not win. 64    The winner was a dog named Jack. He followed the orders very well.

                  65    Later, Dad said it was time for lunch. So we went home happily.

              (1) ____________________________________________________ (2) ____________________________________________________ (3) ____________________________________________________ (4) ____________________________________________________ (5) ____________________________________________________
            • 6. ______ _________ ______ it ended , more than 700 people had been killed and 2700 had been injured.(by)
            • 7.

              — How long do you suppose it is ________ he arrived here?

              — At least three hours.

              A.since   
              B.before   
              C.after   
              D.when
            • 8.

              They had walked in wrong directions for quite some time ________ they realized that they had got lost.

              A.since   
              B.while   
              C.before   
              D.after
            • 9.

              As students, we should keep it in mind that every minute ________ full use of ________ our lessons will benefit us a great deal.

              A.which makes; studying
              B.when made; to study
              C.that made; to study                              
              D.when is made; studying
            • 10. The famous pop singer was going out       he found himself surrounded by lots of young people.(  )
              A.when
              B.before
              C.while
              D.after
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