ICs have been regarded as the most important invention in the Information Age for a long time.
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举一反三
- Not until then did people know that John _________ important military information to the enemy for a long time.
- Not until then did people know that John _________ important military information to the enemy for a long time. A: had been selling B: sold C: would sell D: had sold
- Not until then did people know that he ________ important military information to the enemy for a long time. A: sold B: would sell C: had sold D: had been selling
- Manipulators that mimic human motions ________available for a long time. A: have B: been C: have been D: is
- These magazines___ in the library for a long time. A: have kept B: are keeping C: have been keeping D: have been kept
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In “A Rose for Emily,” Miss Emily ____________. A: has been regarded by the town’s people as a monument B: has been dead and long been forgotten by the town’s people for a long time C: was a representative of the change D: has been regarded a traitor of the south
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How _ have you been to Beijing? A: much time B: long C: long a time D: manytimes
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The program is ________to help people who have been out of work for a long time.
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I have known her for a long time. / She........................ to me for a long time. A: has known B: has been known C: is known
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What is Americans’ idea about time? ______ A. Time is very important to them B. They have no idea about time. C. Time is unlimited D. Time is not important to them