They didn't called their friends.这句话中有一处是错误,请你帮我找出来并说明为什么要改成这个单词

They didn't called their friends.这句话中有一处是错误,请你帮我找出来 They didn't c _____ their mind. they didn't go swimming___(too) They both didn't do their best. nobody knew it ,didn't they.改错 but they didn't notice rt they didn't know how they could do it.同义句they didn't know --------- --------- -----------it. they were ( )because they didn 't havethey were ( )because they didn 't have lunch i didn't know you had called the police before l came here为什么是didn't 而不是don't They didn't called their friends.这句话中有一处是错误,请你帮我找出来并说明为什么要改成这个单词 didn't They after running yesterday afternoon,didn't they?They 什么什么 after running yesterday afternoon，didn't they？ he didn't raise his head until someone called him中文是什么?He didn't raise his head until someone called him中文是什么? (They must have been there yesterday ,______they?)能用weren't they 还是didn't they? they must have seen the film last week,didn't they?为什么要用didn't they呢?they must have seen the film last week,didn't they?为什么要用didn't they呢? people didn't t____(有） TVs and they didn't go to the cinema. They didn't know Spanish,and the waiter____know EnglishA.didn'tB.donitC.doesn'tD.isn't They thought the young man was a terrorist A.wasn't he B.didn't he C.didn't they D.wasn't they