Man-made-satellites______ into space by many countries.A．was sent upB．is sent up

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Man-made-satellites______ into space by many countries.

A．was sent up

B．is sent up

C．have been sent up

D．has been sent up

答案

解析

略

举一反三

The old man needs at most five hour’s sleep a night ,but he__________ for over seven hours tonight.
A. has fallen asleep B has slept C has gone to bed D. has gone to sleep

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I’m really getting too fat. From now on, I________ more exercise and eat less food.
A have done B do C am doing D will do

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_____the bus until it _______.

A．Get off, stops	B．get off, will stop
C．Don’t get off, stops	D．Don’t get off, will stop

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The living standard of the people in Shanghai_______ in the last ten years.

A．has raised

B．has risen

C．has been raised

D．has been risen

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–What did Mr Jones do before he moved here?
-He_______ a city bus for over twenty-five years.

A．has driven

B．drove

C．drives

D．is driving

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