The split between humans and living apes is thought by some scholars ____ 15 to 20 million years ago.

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• 1Simon made a big bamboo box ________ the little sick bird till it would fly.

  A.keep

  B.kept

  C.keeping

  D.to keep

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• 2The chair looks rather hard, but believe it or not; it is very comfortable _____.

  A.sitting

  B.to sit

  C.sitting on

  D.to sit on

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• 3______himself to his lab research, the famous scientist missed ________ from the liver cancer.

  A.Devoted; being saved

  B.Devoting; being saved

  C.Devoted; to be saved

  D.Devoting; to be saved

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• 4______ seems to be one of the main reasons for many people ________ in today's world.

  A.Having an adventure; to travel

  B.To have an adventure; traveling

  C.Have an adventure; to travel

  D.To give an adventure; traveling

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• 5I send you 100 dollars today, the rest ______ in a year.

  A.follows

  B.followed

  C.to follow

  D.being followed

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• 6He hurried to the booking office only ______ that all the tickets had been sold out.

  A.to tell

  B.to be told

  C.telling

  D.told

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• 7I will go to Beijing on business tomorrow. Do you have anything ______ to your son in Beijing University?

  A.to be taken

  B.to take

  C.taken

  D.being taken

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• 8Don't come and see me today – I'd rather you ________ tomorrow.

  A.to come

  B.come

  C.came

  D.coming

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• 9Pleasant as they made it ______ in Jiuzhaogou, we felt tired after the long journey.

  A.to travel

  B.travel

  C.travelled

  D.travelling

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• 10__________ the assignment made his father lose his temper.

  A.The boy's not having done

  B.The boy not having done

  C.The boy's having not done

  D.The boy having not done

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