Online shopping , when properly _______, can save a lot of time , money and energy.

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• 1Only when I made it to the train station _______ that I had left my ticket at home.

  A.have I realized

  B.did I realize

  C.had I realized

  D.would I realize

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• 2—I hear that Tom can't afford his schooling this fall． —_______, let's do something for him．

  A.If so

  B.When necessary

  C.When possible

  D.If any

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• 3The computer was used in teaching. As a result, not only _____, but students became more interested in the lessons.

  A.saved was teachers'energy

  B.was teachers'energy saved

  C.teachers'energy was saved

  D.was saved teachers'energy

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• 4----It's burning hot today, isn't it ? ----Yes, __________ yesterday.

  A.so was it

  B.so it was

  C.so it is

  D.so is it

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• 5If you don't go to the party tomorrow evening, ______.

  A.so do I

  B.so will I

  C.nor do I

  D.neither shall I

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• 6Only when _______ home_____ that he had left his bag in the taxi he had taken.

  A.he returned; did he realize

  B.did he return; did he realize

  C.he returned; he realized

  D.did he return; he realized

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• 7Out_______ , with a stick in his hand.

  A.did he rush

  B.rushed he

  C.he rushed

  D.he did rush

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• 8Only when he got on the train _________ that he had left his mobile phone at home．

  A.he realized

  B.he had realized

  C.had he realized

  D.did he realize

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• 9__________, it wont' be the only factor concerning your happiness.

  A.As the result of the exam might be important

  B.As important the result of the exam might be C Important as might the result of the exam be D.Important as the result of the exam might be

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• 10Hardly ______ he got out of the court ______ the reporters raised a lot of questions to him．

  A.had … when

  B.had…than

  C.did…when

  D.has…than

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