fasten seat belt while seated.这句话省略了什么呢

“fasten seat belt.i teach you many times. fasten seat belt while seated.这句话省略了什么呢 (When)I fasten my seat belt.The plane took off.把他们一句话,加上When. 帮忙找一些关于seat belts 的笑话或者谚语Fasten your seat belt这个就不需要找了. fasten seat belt语法问题please fasten your seat belt 句中为什么系要用fasten 而不是fasting?不是说过去分词表被动和已经完成,现在分词表主动和正在进行吗?这里的主谓之间我觉得没有构成被动呀.这句 英语-请问这句话有错误吗?Please fasten your seat belt before the plane untill the safety light turned off. Telll him_the car and fasten his seat belt.A,to get in B,get on C,get in D,to get on 选择?为什么 首字母 填空The air hostess showed him to the seat and told him to sit down and fasten the seat belt .She told him not to m___ when the plane was going up. ---Peter ,please be quick.I ll be late for the party.---People ____ fasten the seat belt or theyll be fined.You must do it first.A.may B.can C.dare D.must请详解. 英语翻译Air Stewardess:Excuse me ,sir?Could you please fasten your seat-belt?Mr.Tang:Do I have to?Air Stewardess:Yes,sir.I'm afraid you do.我主要是想问I‘m afraid a seat belt其意思为何 Please fasten your seat belts.The plane _.(tade off) 英语翻译1.Welcome to 2.Hello,please get in the car.3.It's smy pleasure to serve for you.4Where are you going,5.Please fasten your seat belt.6.Would you like the air-conditioning on?7.Would you like to turn on the radio?8.Can I help you?9.Do I nee 英语翻译Still,he could never have imagined such a capacity in himself.Only minutes before his character was tested,he was sitting in the ordinary plane among the ordinary passengers,listening to the stewardess telling him to fasten his seat belt 问 一道虚拟语气题If you sit beside the driver in the taxi,you( ask) ________to fasten your seat belt as a faety measure.答案是are asked 我填的是would be asked 为什么不能是我填的那个啊.或者说,will be asked 不可以啊. 关于分词的用法如,seated.例句：Fasten seat belt whlie seated .这里的seated是形容词（a.1.就座的;有...座位的）,还是做动词的分词形式表示被动含义?另外while后是不是只能连接句子,这句话是否中间有 问一下虚拟语气If you sit beside the driver in the taxi,you( ask) ________to fasten your seat belt as a faety measure.答案是are asked 我填的是would be asked 为什么不能是我填的那个啊. 座位安全扣带是指安全带吗?直接翻译成 seat belt