this was at a time when there was no radios...句子成分分析

this was at a time when there was no radios...句子成分分析 He was riding a bike at this time yesterday.at能不能删掉?为什么？不删有没有错？ This was a time when the 2 countries were at war.TIME是不可数名词,为什么用a time, Lana was doing a homework p_____ at home this time yesterday.(注意:句中有一个a) He was reading a book at this time yesterday.改为被动语态 be mad at 后面的动词是什么时态的?还有Dave was doing a homework p______ at this time yesterday. I was having an English class at this time. Lana was doing homework p____ at home this time yesterday it was at this time that什么意思 At that time I was a 1.Yesterday,a road a happened at the airport.This is the w traffic accident.Ten people were injured e one.At that time ,many people went to have a look.Thus,the road was c .I hear that in this accident,a family were injured .They p to take a journey l did not realize at the time that this was more a statement of hope than of confidence的翻译 I was watching a Harry potter movie at this time last night对划线部分提问划线部分Harry Potter Mark was a student at this university from 1999 to 2003,____ ,he studied very hard and was made Chairman of the Students' Union.A.during which time B.for which time C.during whose time D.by that time The project is at this time a little bit down at this time Dr.Smith worked very hard.For a long time Dr.Smith had wanted to get a better job in this big m___ hospital,and at last he was successful.He was made h___ of one part of the hospital,which he wanted,and his wife couldn't w---- 有at this time 么?不要瞎说,以为会的看10年福州英语中考的造句题：SHE WAS RIDING A BIKE YESTERDAY .那为什么不用AT THIS TIME ?要有依据的并且百度词典在只有THIS TIME 没有AT THIS TIME! 翻译This car was so popular at that time that it was unchanged for twenty years.