Selecting a mobile phone for personal use is no easy task because technology __________ so rapidly.

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• 1I've won a holiday for two to Florid

  A.I ＿＿ my mum.A.take

  B.am taking

  C.have taken

  D.will have taken

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• 2The plane _______ at 7：00 p.m.，so I have to be at the airport by 6：40 at the latest.

  A.has left

  B.would leave

  C.will have left

  D.leaves

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• 3Great as Newton was, many of his ideas_____today and are being modified by the work of scientists of our time.

  A.are to challenge

  B.have challenged

  C.are challenging

  D.have been challenged

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• 4“I took part in the TOEFL. It was really hard.” “Did you ______ a lot?”

  A.Have you studied

  B.Did you study

  C.Had you studied

  D.Do you study

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• 5“Mike is not coming to the football game this afternoon.” “It's a shame! He _______!”

  A.promises

  B.promised

  C.will promise

  D.had promised

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• 6—What were you up to when she dropped in? —I _________ for a while and __________ some reading.

  A.was playing; was going to do

  B.played; did

  C.had played; was going to do

  D.had played; did

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• 7It seems water ______ from this tap for some time. We'll have to take it apart to put it right. 

  A.had leaked

  B.is leaking

  C.leaked

  D.has been leaking

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• 8―What were you doing when I called you yesterday afternoon? ―I ________ my homework and I was starting to take a bath.

  A.had just finished

  B.was finished

  C.have already finished

  D.was going to finish

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• 9Many policemen and soldiers are ______ the forest _____ the prisoner escaping from prison.

  A.searching for; searching

  B.searching; searching

  C.searching; in search of

  D.in search for; searching for

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• 10—I have got a headache. —No wonder. You _______ in front of that computer too long.

  A.work

  B.are working

  C.have been working

  D.worked

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