Is that a air-conditioner?这个句子有什么错

Is that a air-conditioner?这个句子有什么错 ______ we all know,air is gas.A、As B、Which C、That D、What 将句子译成汉语：sometimes the polluted air is so thick that it is like a quilt over a city A helmet is a large hard hat that protects the head and is conneted to the air tank翻译 The air is fresher in this place than ( )in that place A.ones B.one C.it D.that look at that man.和That air hostess is A bottle weighs more after air is put in ,________proves that air has weight.A we B it C which Dthat 求详解,感激不尽. Air is to us___water is to fesh.A.that B.what C.where D.how 选什么?为什么? libra represent the air element it is a sign that is more extroverted and active 翻译翻译! It is the air,that is a_____us all. 英语翻译But because immigration law is federal,the study’s authors argued,some uniformity could be expected in judges’ asylum rulings across the country,particularly in cases of people fleeing a country,like China or Colombia,where the condit Nike-air is not a shoe the air in the country is cleaner than ___ of a citya.it b.that为何选B? Air,_______we breathe every day ,is a mixture of several gasesA.the same B.that C.which D.what The air force of that country is ______ the command of General Hall.A.atB.withC.underD.for Air,or ____ is called the atmosphere,surrounds the whole world.A.it B.which C.what D.that That air hostess is young.的同义句 travelling by train is ----cheaperand------enjoyable than that by air