根据句意及首字母或汉语提示写出单词。
Only a few people have a      to the full facts of the case,
He a      himself to solving the problem.
With mobile phones, we can keep in touch with others w    we are.
The results of this research will be applied to the t     of lung cancer.
The most expensive ones have cameras and Internet access as well as games and all sorts of other        （功能）.