they did not recognize each other after what seemed quite some time 怎么翻译?

they did not know which end was they said they did not need any help.同义句 They did not pay any attention为什么不用had not 翻译一下这句 They did not look anything like they do today.They did not sound anything like today. They said they did not need any help.(同义句转换 ）they said they ( )( ) help the team did not lose the game, 后面接did they? 还是did it? they did not pay any attention为什么要加did.不懂did得用法? They did not their homework yesterday.有什么语法错误? In fact,you did not know they could have been they did not have much money改同义句 Why did not they accept your cheque?变成被动语态 they did not know which was better是什么意思 They did not need to arrive so early.中的arrive They did not pay any attention{同义句} 英语翻译did they take the bag after a struggle or not?where did they run?did she run after them or not?what were they doing?what did Mrs.sterling do what did they do? Few of them hurt thenself in the accident last night,A do not they B did not they C did they D do they为什么选C They had lunch in the park,（ ）? A.had not they B.did not they C.won‘t they D.are not they如题 ___snacks and drink,but they also brought cards for entertainment when they had a picnic in the forest.A.Not only they brought B.Not only did they bring C.Not only brought they D.Not only they did bring