It is too dusty in the sky for the scientists on the earth ________ the outer space.

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The police ________ the terrible accident.

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This is the way ________ a satellite is carried up into space.

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Nowadays most people would rather ________ TV at home than ________ to the cinema.

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When you read the book, you'd better make a mark ________ you have any questions.

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He is the boy ________ you had a talk the other day.

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I intend ________ swimming this afternoon.

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People ________ energy can be fit for that kind of job.

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It proved ________ than we had thought.

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The boy spends too much time ________ TV.

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