Today,computers are really helpful.They______every where.A.use B.are used C .used D.were usedA.use B.are usedC .used D.were used

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• The company has about 36 computers,but only one-third ___ used regularly.A.is B.are C.was D.were
• Today,computers are really helpful.They______every where.A.use B.are used C .used D.were used
• Today,computers are really helpful.They______every where.A.use B.are used C .used D.were usedA.use B.are usedC .used D.were used
• It's hard to believe that some old textbooks published ten years ago______in our university today.A.are using B.are being used C.have used D.were used
• They used to d---- generously to the Red Cross every year.
• 写了一篇英语演讲稿《A word that has changed the world》求指教A word that has changed the world ------the power of knowledgeBy：Lindsey Hello, everybody !I'm very glad to stand here and give you a short speech.Today my topic is knowledge. “What do you think is the word that has really changed our world ?”When I was asked about this question for the first time ,without thinking a second time, a word flashed into my mind ——knowl