Chen Qiang told Mr Smith that the People's Republic of China was founded on Oct.1st,1949为什么用was founded 而不是has founded?不应该只是过去的过去吗?错了，为什么不是has been founded?

Chen Qiang told Mr Smith that the People's Republic of China was founded on Oct.1st,1949为什么不是had been founded? Chen Qiang told Mr Smith that the People's Republic of China was founded on Oct.1st,1949为什么用was founded 而不是has founded?不应该只是过去的过去吗?错了，为什么不是has been founded? MR.Chen teaches Chinese_______. Mr Chen Sorry! MR CHEN RESTAURANT怎么样 Mr Chen is a worker. escuse me,betty .i'm___for mr chen .where's he?i think ___ ____the playground. Happy store的价格比Mr.Chen's store和Uncle Eddy's store 的商店更便宜的英语怎么说 英语翻译Mr.Wang,Good evening.Thank you for the delivery of Mr.Chen's print to Yaishu8 today.I like to request the below.1.We agreed to have the photo of Mr.Chen and classes scene were supposed to be attached to Mr.Chen's frame but it is missing s 英语翻译Mr.Wang,Good evening.Thank you for the delivery of Mr.Chen's print to Yaishu8 today.I like to request the below.1.We agreed to have the photo of Mr.Chen and classes scene were supposed to be attached to Mr.Chen's frame but it is missing s at Chen Ling's 英语翻译MR chen同意下次发货的时候补齐C12-7S缺乏（shortage)的数量. ''women's day is on March s.''Mr.li told me yesterday.变成一个复合句 Mr.Chen,you will never feel longely . Mr Chen _______ ________ his work _______.Mr Chen has already finished his work .否定句 what does mr.chen do?和what has mr.chen got now? Mr Chen knows Sunshine Town very well.very划线 对其提问------- --------- -------- Mr Chen -------Sunshine Town? Mr.s Wang told us:we will have a long holiday,间接引语