They entered our airspace radio silent 这句怎么分析句子成分啊,radio silent与前面什么关系?silent 为什么放在名词后面啊

they cool our cities and clean the air They entered our airspace radio silent 这句怎么分析句子成分啊,radio silent与前面什么关系?silent 为什么放在名词后面啊 急if a trian entered this tunnle ,it would draw in fresh air behind it.为什么用entered? our teacher entered the our teacher entered the room,______book in____ hand.为什么两个空格都不用填冠词, Andrew's eyes lit up i______ they entered the room 把以下句子变为一般疑问句和反问句：Trees help us in many ways.Trees keep the air cool and clean.They take in harmful gasses from they air.They are major fighters against air pollution.I know trees make our lives more convenient.Many o Trees can make our air ____.(colore) our cities' air will be cleaner对吗? They make the air fresh翻译 yes,they are (our) i think that something has to be done to stop our air from being polluted,___________?A.doesn't it B hasn't it C don't they D haven't they选什么?为什么? After they had entered the house,they went into the dining room.中文翻译, if a train entered this tunnel,it would draw in fresh air behind it.这里为什么加behind 求初中牛津英语8A chapter6 more practice的翻译 文如下：Dear friends:Trees are our friends.They work hard for us.They cool our cities and clean the air .They also give out oxygen for us to breathe.Trees reduce sound pollution in cities an air force,air forces 那个正确?our air ____are stronger than before.A.force B.forces C.strength D.power 改为同义句There are over five thousand students in our school.There are ____ ____ five thousand students in our school.The clothes shop is near our favtory.The clothes shop is not ---- ---- our factory.They will go to Beijing by air for their ho The teacher entered the classroom quietly when we were doing our exercisesquietly划线提问 we are so very glad that you even entered our为什么用so修饰了very