Some of them which remain in the air _____ the air pollution

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• Th problem which the air pollution in cities has become more and more serious.
• Some of them which remain in the air _____ the air pollution
• Smoking,which may be a pleasure for some people,is a serious source of discomfort for their fellows.Further,medical authorities express their 21 about the effect of smoking 22 the health not only of those who smoke but also of those who do not.In fact,nonsmokers who must 23 inhale(吸入) the air polluted by tobacco smoke may 24 more than the smokers themselves.As you are doubtless 25 ,a considerable number of our students have joined in an effort to 26 t
• on the ground lay some air conditioners,which are to be shipped to some other cities
• Some sentences in the following are sentence fragments.Correct them.1.Gathering speed with enormous force.The plane was suddenly in the air.Then it began to climb sharply.And several minutes later started to level off.2.The officer came to the alley where the man was last seen.And where the stolen gems were probably hidden.3.Talking with an old friend usually revives old memories.Such as college pranks,football games,and wartime experience.4.The next
• [高一语法]in the end the news came all of them had been killed in the air crash讲一下理由 为什么 分析一下 谢谢!in the end the news ______came all of them had been killed in the air crash,but we believed _____things were not so bad a that ,that b /,/ c /,that d that,which
• 英语首字母填空题目air is everywhere around us．hot air is very （l ）．and some early （b ）used hot air．you have seen hot （s ）rising overa fire．the hot air takes it up．some ballons carried the fires under them,then they took up （i ）the sky．it was not a （s ）from of travel．
• There are several ways to build solid walls using just mud or clay,but the most extensivelyused method has been to form the mud or clay into bricks,and,after some preliminary air drying or sun drying,tolay them
• 英语完形填空,就差一题!Smoking,which may be a pleasure for some people,is a serious source of discomfort for their fellows.Further,medical authorities express their 21 about the effect of smoking 22 the health not only of those who smoke but also of those who do not.In fact,nonsmokers who must 23 inhale(吸入) the air polluted by tobacco smoke may 24 more than the smokers themselves.As you are doubtless 25 ,a considerable number of our students have joined in an ef
• 阅读理解My name is Julia.I'm fifteen years old and I live in Winchester.It's a big town,and the streets are very narrow.Many people come into the town every day for work and for shopping.They all come by car.The traffic is very bad and there's a lot of air pollution(空气污染).Sometimes it is hard to breathe.From 10 a.m.to 2 p.m.,there are usually traffic jams(交通堵塞).Some of my friends think we should build more roads(建更多的路).Others think more people should go b
• 无穷小除以无穷大还是无穷小吗?
• 请教高手这句话的意思,pls let us know how many words are involved in case there are many affected