People in countries all over the world should get together to discuss the earth and our future and ________ action to improve the current situation.

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He ________ in bed and ________ to his mother “I got A in the test”. Surely his mother thought it to be ________.

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We are lucky to be among the generation of people who have ________ and experienced the great social changes in our country.

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Be careful. Your trousers will ________ fire if you stand there.

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The old lady gave us a/an ________ description of Tangshan Earthquake in 1976.

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Passengers are ________ by law to wear seatbelts in our country.

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Old photographs give one a brief ________ of the past.

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All that is needed is a continuous supply of the basic ________ of life.

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It's quite ________ that the director will be present at the meeting tomorrow.

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Thanks to the invention of the mobile phone, people can now keep in ________ with each other quite easily.

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