Most computer users think it necessary for their software ________ regularly．

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• 1--- Why do you look so upset? --- There are so many troublesome problems _________.

  A.remaining to settle

  B.remained settled

  C.remaining to be settled

  D.remained to be settled

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• 2The trend of Phubbing group ( 低头族) getting increasingly large is spreading worldwide, ______ many problems such as traffic accidents and cold interpersonal relationship. 

  A.and cause

  B.only to cause

  C.caused

  D.causing

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• 3Nankai University,_______ in 1919, has a history of more than 94 years.  

  A.found

  B.founding

  C.founded

  D.to be founded

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• 4The best man carefully goes with the couple to the church, _____.

  A.marry

  B.to be married

  C.married

  D.being married

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• 5______from the top of the mountain, the village looks like a small box.

  A.Seen

  B.Being seen

  C.To see

  D.Seeing

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• 6Peter received an e-mail just now ______ his uncle would come to see him.

  A.saying

  B.said

  C.says

  D.to say

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• 7____ more attention, the trees could have grown better.

  A.Given

  B.To give

  C.Giving

  D.Having given

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• 8Many developed countries have agreed to help the less developed ones but it remains ________ whether they will take action or not.

  A.to see

  B.to be seen

  C.seeing

  D.seen

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• 9________ with what he said, what he did was more valuable.

  A.Comparing

  B.Compare

  C.To compare

  D.Compared

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• 10In this victory speech ________ before a huge crowd of his supporters, Obama declared that “Change has come to America”.

  A.delivered

  B.to be delivered

  C.having delivered

  D.delivering

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