one of the serious problems facing us is (that)of how to deal with the pollution problem.这里为...one of the serious problems facing us is (that)of how to deal with the pollution problem.这里为什么用that 不用the one或者是其他代词呀

I think the serious pollution is one of the c_____ for most countries The ______________ is one of the most serious problems in most big cities. The tsunami in India Ocean is one of the ____(serious) disasters in recent 100 years. 用英语描述一下地震开头：Earthquakes are one of the most serious natural disasters in the world so,water shortage has become one of the most serious problems facing us today帮我翻译一下 The ___(short) of water is serious. one of the serious problems facing us is (that)of how to deal with the pollution problem.这里为...one of the serious problems facing us is (that)of how to deal with the pollution problem.这里为什么用that 不用the one或者是其他代词呀 1.（ ） A:What’s wrong with you ,Tom?B:____.A.Nothing serious B:Serious nothingC:Anyting serious D:Serious angthing2.( ) Mr.Tan is very fat.He should eat _______.A.much B:less C.more D.many 3.( ) Mike is one of the _____ players on the school bas (⊙⊙?)请各位高手帮忙改一下我的作文.In this information-fast age, people’s speed is an important role in the social. The transport regarded by people to get more advantage, but now it avoid us action. It is one of the most serious p The ______(照顾) of the old is a serious problem. the driver of the car was ___(serious) injured The driver of the car had ( )injuries.[serious/seriousiy] the increasing population has become one of the most serious challenges in the world 中为什...the increasing population has become one of the most serious challenges in the world 中为什么要用increase 的ing形式加了ing就是形容词了 As a result of the serious flood,two-thirds of the buildings in the area_____.A.need repairingB.needs to repairC.needs repairingD.need to repairAs a result of the serious flood,one-thirds of the buildings in the area_____.A.need repairingB.needs to r 求修改英语作文Pollution of EnvironmentPollution of EnvironmentIt is common that Our living conditions for the destruction of the environment and become more and more serious.why does such circunmstance occur in spite of social protects?For one The serious earthquake left thousands of people______(home) cuz you are soul serious most of the time. Air _____ (pollute) is the most serious of all.