In order to learn English well,we have to_________ the skills of speaking as well as those of listening,reading and writing.

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Careless driving ________ a lot if high way accidents.

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--The cars give off a great deal of waste gas in the streets.

--Yes. But I'm sure something will be done to ________ air pollution.

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The house is too small and there is no________left for the big bookshelf.

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I can hardly________ the difference between these two words.

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I don't think________ Jenny can come home this weekend．

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--My foot hurts terribly,doctor.

--Well,I wonder _______ it has been like this.

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Please tell me _______ you would like to have your coffee--black or white?

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The picture I took in the countryside always _______ me of the time when I stayed there.

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Something that is_______ can be moved easily from place to place.

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