. From this simple concept ________ that has caused a great change in farming.A．

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. From this simple concept ________ that has caused a great change in farming.

A．has developed a technique	B．has a technique developed
C．a technique has developed	D．developed as a technique has

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举一反三

. The main fact(or)s in human life are five: birth, food, sleep, love and death. (One could increase the number— add breathing for instance— but these five are the most obvious.) Let us ask ourselves ________ our lives.

A．they play in what part	B．they play what part in
C．what part they play in	D．in what part they play

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. A look at recent trends in world fisheries reveals ________ the ocean on a global scale.

A．how we have swiftly affected	B．that how swiftly we have affected
C．how swiftly we have affected	D．however swiftly we have affected

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. A little learning is not dangerous so long as you know ________.

A．that

B．that there is a little

C．it is a little

D．that it is little

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. Her unusual success shows that if someone can do their job really well, then the question ________ male or female is not so important.

A．if they are

B．of whether they are

C．whether they being

D．of whether to be

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. ________ in one leg, he never had a chance to get a job.

A．Weak and lame	B．He was weak and lame
C．Though weak and lame	D．Weak and lame as he was

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