Most old city walls were pulled down in the 1960s为什么“pull”是加ed而不是ing呢?不是is,are后面加动词ing形式么?

Most old city walls were pulled down in the 1960s为什么“pull”是加ed而不是ing呢?不是is,are后面加动词ing形式么? Many years ago ,there were many old city walls in Beijing.(同义句转换)many years ago ,there were many old city walls in beijing同义句转换____ ____ ____ ____ many old city walls in beijing. Manly years ago ,there were many old city walls in Beijing.(同义句转换)many years ago ,there were many old city walls in beijing同义句转换____ ____ ____ ____ many old city walls in beijing. There used to be lots of old city walls in beijing 的反意疑问句 Today the g_____ and many people realize the importance of saving these old city walls how to deal with old city walls 初二英语作文（70字左右） 16.______ he ______ take an active part in rebuilding the old city walls? Many years ago,there were many old city walls in Beijing.的同义句 英语同义句替换!Why did the workers use live models（）did the workers use live models（）？2.some old city walls in this city need repairing nowpeople need（）（）some old city walls in this city 初二英语；it's too bad____down the old city walls A.to pull B.pulling c.pull The old city walls weren't _p_________ down.They remain now.根据句意及首字母填空填词,谢谢 完成译句：北京曾有很多旧城墙（）（）（）（）many old city walls in Beijing. 英语翻译I'm studying in a city famous for its walls.All visitors to my city are amazed by the imposing sight of the city walls,silhouetted by the setting sun with gold and shining lines.With old,cracked bricks patched with lichen,the walls are we There used to be lots of old city walls in Beijing.反意疑问句如何用?There used to be lots of old city walls in Beijing的反意问句,是用didn't there 还是用wasn't there?理由是什么? he _ outside the walls of cityhe _ outside the walls of city The fire went on for nearly five days,which destroyed most of the old city.的意思不是问句哦 简单的词汇题9.The building _______ ________ _______ ______ (组成)200 million stones.10.Please make some sentences ____________ _________ (按照)the pictures.11.Who _______ _______ (拆毁)the old city walls?12.People _______ the Yellow River 英语the dirty old were walls怎么连词成句