30.It is well know that it ____ stamina to run a marathon.

30.It is well know that it ____ stamina to run a marathon. i know it is i( ) difficult to run a marathon ,but i still w It is well [know]that China is a developing country,填空为什么 It is well known that ____ the flower is to grow,____the pri she said to the children ,"it is well-know that the earth mo it is good to know that you are doing well中文意思是什么 people know that he is able to do it well 改为被动 It is well know ____ a person eats cause changes in the body 英语翻译It is a well-know fact that,those who suffer from stress It is known to us all that email,as well as telephones,____ When your computer begins to run slow, it is a ______ that i 英语翻译It is a ____ that the sow is not ___ ____ to make a snow