________ physics is ________science of matter and energy.

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What do you think of the ________ that a meeting should be held at once to discuss the tree planting programme?

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There is a constant flow of people from the countryside into the cities, eager for the ________ of modern society.

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The number of people invited ________ fifty, but a number of them ________ absent for different reasons.

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Pop music is loved by lots of people, but it is not to everyone's ________.

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Some famous singers live on the ________ from their record sales.

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－Can you pick the apple at the top of the tree?

－No, it is out of my ________.

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What ________ time it is to wait any longer.

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Three-fourths of the surface of the earth ________ the sea.

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He left ________ with my secretary that he would call again in the afternoon. He said he would keep ________.

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