1、It was well known that Thomas

It was well known that Thomas Edison __________the electric it is well known that It's well-known to all that... it is well-known that albert einstein was one of the greates it 's well known that 还是it 's well-known that it is well-known that,还是it is well known that it's well known It is well-known 用定语从句改写下列句子：1,It is well known that human activiti It is well-known that a dove symbolizes peace. 英语翻译It is well known that ( ) 括号内填什么? it is well known to us that是什么意思