问句英语句子they've been the one picking the articles.翻译是说他们开始自己挑选题材.看不懂这句的结构 为什么用the one 为什么用been呢?

问句英语句子they've been the one picking the articles.翻译是说他们开始自己挑选题材.看不懂这句的结构 为什么用the one 为什么用been呢? They've They haven’t 将这个句子改为一般疑问句：They’ve been to London twice. 英语句子分解aren't you troubled by how much we've been fighting?这句话从帮我分解一下吗从结构上和意思上? They've been looking for flats but haven't found ( ) they liked yet.They've been looking for flats but haven't found ( ) they liked yet.A oneB ones这里为什么不能用ones呢? They've been through enough什么意思 请分析句子成分：They've been divorced. They've been _____ it for hours,but they still can't agreeA.discussingB.arguingC.talkingD.chatting选哪个?为什么? 解析一个英语句子(高一)I've been in touch with my home-stay parents by e-mail and have learned that they have a son my age.为什么son和my age间不需要加介词? they don't believe the boy is lying,do they?这个句子的反问句是do they还是isn't he 英语翻译U've been waiting so long,I'm here to answer your calls I know that I shouldn't have had you waiting at all I've been so busy,but I've been thinking 'bout- what I wanna do wit you I know them other guys,they've been talking 'bout the way 英语翻译U've been waiting so long,I'm here to answer your calls I know that I shouldn't have had you waiting at all I've been so busy,but I've been thinking 'bout- what I wanna do wit you I know them other guys,they've been talking 'bout the way 陈述句怎样才能化成说的话?（英语）英语 He could've been killed. 化成 you 打头的句子是什么? They’ve been dying to meet you怎么翻译? They've been married for five years同意句转换 They've never been to Beijing.(改为反意疑问句） They've never been to Beijing,_____ ______? 一道英语选择,These trees must have been planted three years ago,____?A weren't they B must't theyC didn't they D haven't they No,they aren’t.they are my parents.问句