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主动语态与被动语态相互转换 A.改为被动语态 1. We call maths the language of science. Maths _____the language of science. 2. Where did they plant trees? Where ______ trees ______? 3.The workers built the Green Great Wall across the northern part of the country. The Green Great Wall ________ across the northern part of the country. 4. The teacher made the students copy the text. The students ______________ copy the text. 5. They produce silk in Suzhou. Silk _________ in Suzhou. 6.They built a bridge between the two islands lastyear. A bridge __________ between the two islands lastyear. B.改为主动语态 7. A birthday party will be had tomorrow. We ______a birthday party tomorrow. 8.John was seen to cross the street just now by someone. Someone saw John _____the street just now. 9.Can another way be thought of to keep your wine or water warm? Can ________ another way to keep your wine or water warm? 10.Too many trees are still being cut down in the USA. ___are still____ down too many trees in the USA. | 
