一个英语句法问题he sat down and wrote a note describing in detail the extraordinary change in the picture since he had received it这句话中为什么要用describing而不用to described?to+动词不是表目的吗

一个英语句法问题he sat down and wrote a note describing in detail the extraordinary change in the picture since he had received it这句话中为什么要用describing而不用to described?to+动词不是表目的吗 英语句法分析有一天我问了他一个问题 一个英语句法问题 a set of keys 应该用is还是are提问 那a pair of shoes呢 这句英语可以这么写么?、After i had sat down,he said that business was evry bad.这句话可以这么写吗?he said that business was evry bad after i had sat down. 英语高手进,请给出答案并简单讲解,谢谢!1.Hardly____when a visitor came in. A. he had sat down B. did he sit down C he sat down D. had he sat down2.---Is there anything wrong, Bob? You look sad. ---Oh, nothing much! In fa He sat down, and looked very sad.翻译成中文 He g( ) on the bus and sat down. With nobody ( ) sight ,he sat down to have a rest 可以说Before sing a song,he sat down吗?RT 英文句法问题 关于西班牙语句法问题 英语根据短文内容,回答下列问题One evening,after work,I got on a train,found a seat and sat down.A man was next to me.He was reading a book.I had nothing to do,so I read the same book with the man.I read a page and sat back,waiting for hi 如何写对一个英语句子 （语法,句法,词法)? He sat down and watched his dog to played.这句话有错吗?我还有问题,就是两个动词怎么在一起啊. 英语句法的结构 一个英语句法问题Ranged around the walls were six white beds , each with a tag at the head.这句里的with可不可以放到each前面? 求英语选择,----his work,he made himself a cup of coffee and sat down to enjoy some musicA finishingB having finishedC finishedD to finish He sat down and watched Wang Wang piay with a friendiy biack cat.Wang Wang 是一个狗滴名字.谁能帮偶翻译啊?急用!