His father was really a ______ person. Once he made up his mind, nothing could change it.

“Cell phone” is a     American usage，but British speakers always use “mobile phone”．

Young people are not_________ to stand and look at works of art; they want art they can participate in.

Can’t you do something about the handle of this ax? It’s ______ to use.

We can’t ____ the punctual arrival of trains in foggy weather.