She will tell us that each of us has a role ______ in making the earth a better place to live．

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• 1He purpose of new technology is to make life easier, _____it more difficult.

  A.not making

  B.not make

  C.not to make

  D.not to making

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• 2Helen had to shout ________ above the sound of music.     

  A.making herself hear

  B.to make herself hear

  C.making herself heard

  D.to make herself heard

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• 3________ the working efficiency, the boss allows the employees to have a coffee break.

  A.Improving

  B.To improve

  C.Having improved

  D.Improved

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• 4— What do you enjoy most ________ in the summer holidays? — Playing table tennis.

  A.killing time

  B.to kill time

  C.spending the time

  D.to spend the time

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• 5.Brandon worked for hours after school________money for her education.

  A.making

  B.made

  C.to make

  D.having made

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• 6The boss didn't know who ________ for the broken cup.   

  A.will blame

  B.to blame

  C.blamed

  D.blames

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• 7Everyone in our class was working hard and doing what we could ______ a good college.

  A.enter

  B.to enter

  C.entering

  D.entered

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• 8She couldn't wait ________ home after such a long and tiring journey.

  A.going

  B.to go

  C.go

  D.went

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• 9______ the theory, the scientists asked more than sixty college students to take part in the experiment.

  A.Being tested

  B.To test

  C.Testing

  D.Tested

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• 10A middle aged woman came________to the bus stop only________the bus had gone.

  A.to run; to find

  B.running; to find

  C.and ran; found

  D.running; finding

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