pollution is a serious problem in big cities throughout the world 同义句转换就变throughout这点

There is a lot of pollution.(改为一般疑问句） ____ ____ ____ of pollution. Air pollution is now a serious problem in China 英译汉 Pollution is a w______ problem.首字母填空填什么. Pollution is a big p___ for the party Pollution is a big p______ in many countise The local government is making a s___ of river pollution man is fighting a battle against pollution.改为被动语态. Especially important to many people __________.[A] there is legislation against pollution [B] is legislation against pollution[C] it is legislation against pollution [D] legislation against pollution is为什么选B?并翻译整句 there is a lot of traffic and pollution.为什么用is不用are not every people know noise is also a kind od pollution.同一句（ ）（ ）know(s) noise is a kind of pollution as well. Pollution isn't a big problem now,is it?( ) Pollution isn't a big problem now,is it?( )A Yes,it is B No,it isn't求给出答案后将答案的正确翻译说一下Pollution isn't a big problem now,is it?( )Pollution is a big problem now,isn't it?( )A It is reported that PM2.5pollution is the main problem( )air pollution today.A.in B.at C.by D.with Air pollution is more serious than water pollution.的意思? not all people know noise is also a kind of pollution 同一句（ ） （ ） kno hiwever,not all people konw noise is aiso a kind of pollution 急. A great deal of smoke with c__ is sent into the air,causing much pollution Noise pollution is a source of increasing misery to people in our society.怎么译? there,air,a,of,is,lot,pollution.us,around连词成句