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根据句末的要求或提示改写下列句子
88. We can go to the museum today. We can also go there tomorrow. (用either…or…改写)
89. It is believed that Loulan was gradually covered by sandstorm from AD200 to AD400.（句式改写）
Loulan is believed ____________________________________________________________ .
90. He didn’t go to bed until I came back. (对划线部分强调)
91.Luckily, we’d brought a road map. Without the road map we would have lost our way. (改为含有定语从句的复合句)
92. “Did you have an argument with Mary?” John asked.(改为间接引语)
93. Why does English have so many difficult rules that confuse people? That is the reason.(改为表语从句)
94. Nobody understood his speech，____________ ? (反意疑问句)
95. Their money was used up and they had to give up the project.(改成简单句)
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Pollution 1 (be)a problem that happens in water, air and earth．It is 2 (表语)with animals and humans．The water pollution is 3 (cause)by waste from factories．The 4 (fish)will die, if the river polluted by chemical factories．Then if some people 5 (谓语动词)those fish, they will also be dead．The others is air pollution． 6 (改正错误)It comes from factories, power stations and cars． 7 (冠词)chemical in the smoke will fall in the rain．This “chemical rain” will kill trees and fish．It’s either bad to the building． 8 (改正错误)From that we 9 (情态动词)know how bad the pollution is．
We hope that the scientists can find out the way to make environment better soon． 10 (改为形式主语结构)
I don't think[1] _________ (人称代词)is good to send teenagers abroad to study.?[2] _________ (Compare)with China's education, [3]foreign education has many problems (改为there be 句型).Some foreign schools are not as good[4] _________ (连词)those of our country in teaching quality.In[5] _________ (指示代词)schools,students can't learn more,and therefore waste a lot of money,[6] _________ (连接词)is a heavy burden to their families.[7]Teenagers are too young to take care of themselves either in their study or in their daily life.(改为so...that...句型) As they don't have the ability to tell right [8] _________ (介词)wrong,and have less necessary help and guidance,some [9] _________ (谓语动词)their interest in studies and [10]even learn something badly to themselves.(改正错误)
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