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When I try to understand（ ）that prevents so many Americans from being as happy a

A why it does B what it does C what it is D why it is

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When Paul Osman,the Sales Manager of Jayal Motors which makes mopes,visited a ci

A in an purpose B for the aim C for the try D in an attempt

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When television first began to expand,very few of the people who had becom comme

A turn B adapt C alter D modify

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When the glaciers（ ）after the last ice age,the five Great Lakes of North America

A advanced B evaporated C thawed D exploded

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When two people feel the same about each other,their feelings are（ ）.

A visible B common C joint D mutual

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When we grow older enough to earn a living,it does not surprise us to discover t

A bound B destined C doomed

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Wherever there is matter.There is energy;all changes of matter（ ）changes in the

A retain B include C involve D contain

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While a manager communicates mostly to（ ）information,a leader uses communication

A transport B carry C convey D express

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Who talks more,women or men?The seemingly contradictory evidence is（ ）by the dif

A compromised B reckoned C reinforced D reconciled

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With a teacher like Mr.Brown,the（ ）method used in the classroom was by no means

A traditional B learning C pedagogical D pococurante

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