用括号内所给单词的适当形式填空。（每空不限一词）
The doctors didn't know what caused the old man's                .(blind)
The organization                (set)up in 1949.
It is my                (please) to volunteer for the show.
Two                (Canada) joined us in the English corner.
Because of the _________(medicine) treatment, a lot of people were saved.
All the people on the plane were lost,                 (include) the pilot (飞行员).
If necessary, we will give a                (help) hand.
The foreign visitors are going to travel in some                 (south) provinces of China.
You should spend your spare time more                 (wise), instead of doing such meaningless things.
We Chinese often greet each other by                 (shake) hands.