Rainforests(_________)and burned at such a speed that they will disappear from the earth in the near future.A.cut.B.are cut.C.are being cut.D.had been cut.这题为什么选C不选D?在此多谢了.为什么括号后单词不用Cuting burning?

英语翻译we need rainforests for many reasons 英语作文How to protect rainforests? What shall people do with rainforests? Rainforests are very u_____ to us 英语翻译there are people for whom the rainforests are home Rainforests are being cleared 热带雨林被砍伐.去掉being行不行? 英语翻译humans depend on the rainforests for their continuing existence Humans depend on the rainforests for their continuing existence.翻译 rainforests are very important to us .为什么是用 to rainforests cover 6% of the earth's surface.there are rainforests in many part是一篇首字母 英语翻译rainforests are of consequence for a number of different reasons 一道英语首字母填空rainforests have been t_____ into fields for growing rice and vegetables. the rainforests can heip to c___the weather so we should protect them well The destruction of the rainforests is the direct result of logging activity.翻译 谁读过Rainforests are important places for people and animals开有的阅读理解 The rainforests can give us many ____things.A.use B.used C.useful Rainforests are magical places on earth,full of life and beauty.They are h__ to millions of birds,inserts,animals,and plants.Environmental groups are trying hard to s___ the rainforests. 剑桥雅思4 Test1 阅读有三篇 是 Rainforests ,What Do Whales Feel?和Visual Symbols and the Blind