39. _______ is certain, people’s living conditions in China have improved a lot since the 1980s.
---Mary’s brother has such high _______ that he has learned three languages. ----Really? It’ hard to believe.
– You visited the man who saved your son yesterday? –Yes. I wanted to express my thanks to him _______.
With the development of society(社会), most of the old customs here have _______ already.
Much attention should be _______ to your communication skills, if you want to be a successful leader.
To be honest, a lot of people attach great importance to ______ famous.