随着家庭结构的不断演化,过去三代同堂、四代同堂的大家庭已基本上不存在,现在一般为核心家庭和主干家庭。核心家庭是 ( )
In face of ______ failure, we should keep up ______ good state of mind instead of being distressed.
I am very sorry to have bothered you with so many questions in such a(n) ______.
Experts are badly ________ that robots will completely take the place of human beings in the future.
- How are the things in your village? - Modern farming methods have been brought in and the villagers are ______ now than before.
So far, no one has given us any ______ about this and it is still a mystery to me.