Not until the early years of the 19th century ________ what heat was.   

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• 1When it comes to reducing stress, enough sleep and physical exercise can help, ________.

  A.so does proper nutrition

  B.so proper nutrition does

  C.so proper nutrition can

  D.so can proper nutrition

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• 2The headmaster will not permit the change in the course, nor ______ it a thought.

  A.does he even given

  B.he even gives

  C.will he even give

  D.he will even given

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• 3Peter has been busy these days and seldom ________ to come over to have a chat with me.

  A.doesn't he have time

  B.does he have time

  C.he has time

  D.he hasn't time

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• 4— How much do you know about the 3D film technology?— A little. Not until _____ the hot movie Avatar ______some about it.

  A.did I see; did I begin to learn

  B.I saw; I began to learn

  C.I saw; did I begin to learn

  D.did I see; I began to learn

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• 5Under no circumstances and at no time ______ be the first  _____ nuclear weapons.

  A.we shall ; using

  B.shall we; to use

  C.shall we ; using

  D.we shall; to use

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• 6Nowhere else in the world ______ a good person like Mr Smith.  

  A.can we find

  B.we can find

  C.we will find

  D.we have found

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• 7Not until I began to work _____ how much time I had wasted.   

  A.didn't realize

  B.did I realize

  C.I didn't realize

  D.I realized

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• 8So difficult _____ it to live in an English-speaking country that I determined to learn English well.

  A.I did feel

  B.did I feel

  C.I have felt

  D.have I felt

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• 9— Tom had a good time at the party. —  _______ and ______.

  A.So he had; so did I

  B.So had he; so I did

  C.So he did; so did I

  D.So did he; so I did

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• 10Only when the war was over ____ to his home town.

  A.did the young soldier return

  B.the young soldier returned

  C.returned the young soldier

  D.the young soldier did return

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