There are ________of people in the dining hall．

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Both sugar and salt can________ in water．

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The new technology has opened up a very wide ________of possibilities．

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Magazines provide a wide variety of information and________．

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If you get up early and run every day，you will ________a lot from it．

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This energy comes from substances stored in the cells of the body．These substances ________energy by combining with oxygen．

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(1)This river ________south into the English Channel．

(2)Cork ________in water．

(3)The sun ________in the east and sets in the west．

(4)This ________the question of why nothing was done before．

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(1)The country needs a ________government．They have had four Prime Ministers in one year．

(2)He crashed into the back of a ________vehicle．

(3)The ________noise gave me a headache．

(4)There was a ________line of cars stretching for miles．

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Professor Bates is always very ________to the reaction of the audience when he gives lectures．

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She was so ________in her job that she didn't hear anybody knocking at the door．

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