用括号内所给词的适当形式填空。
If someone doesn’t show good manners to others, he or she is         （polite）.
            (lucky), the sick boy had a successful operation at last.
It is silly of you                (not forgive) others for their faults.
Listen! The music                 (sound) wonderful! I’ve never heard it before.
Yellow is the colour of               (wise). Some people like to use it when they study for exams.
The old man               (live) here since 1992.
You’d better make the               (decide) as soon as possible.
While I                ( travel) in Australia last summer, I saw lots of sheep.
Edison was one of the great                 (invent) in the world.
I am sure that the film is worth               (see)