In 1831, Faraday discovered that electricity moves through a wire ________ a magnet（磁铁） is moved near the wire.   

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• 1__________ I admit that the problems are difficult, I don't agree that they cannot be solved.

  A.When

  B.While

  C.As

  D.Since

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• 2When you are reading, make a note of _______ you think is of great importance.

  A.which

  B.that

  C.what

  D.when

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• 3Is _____he said really true?

  A.that

  B.what

  C.why

  D.whether

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• 4It has come to my notice _______ some of you have missed classes.

  A.what

  B.which

  C.that

  D.when

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• 5To those scientists, it still remains to be a question ______ man can go back to the old days with time machine.

  A.if

  B.that

  C.how

  D.whether

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• 6. ---Did he hear of the news that his son sacrificed in the war? ---No. It was _____  he received the call from the army _____  he knew it.

  A.until, that

  B.not until, when

  C.until, when

  D.not until, that

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• 7Jim has no idea where he lost his watch, ____ it's ____ that he will get it back.

  A.and; unlikely

  B.but; impossible

  C.and; possible

  D.but; probably

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• 8  The population of the country is 3 million, _____ Kooris.

  A.1 % of which were made up of

  B.1 % of it were Kooris

  C.and 1 % of which were made up of

  D.1 % of them were

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• 9.I am here not because I want to earn money ________I want to educate the children.

  A.but

  B.but because

  C.but for

  D.and because

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• 10______ they live in the same house, we would no trouble finding them. ---But as traveling salesmen as well as seasonal herdsmen and farmhands, as you know, they move house _______ many of the Americans who live on wheels.

  A.As far as; as often as

  B.As well as; as well as

  C.As long as;;as often as 　　　

  D.As long as ; as far as

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