用括号内所给词的适当形式填空.（英语）
Jack liked playing a ___(music) instrument.
The particcipants were ___(main) young people.
Jim's ___ (not water) the plants plants yet.
I will go on a ___(sightsee) tour with Mr.Green.
I am always ready ___(sork) for you.
This is an ___(origin) painting by Picasso.
Now the singer plays ___(most) his own songs.
I came late and missed ___(see) the famous singer.
The visit for the Great Wall was really (amze).
Yhe rain ___(stop).Shall we go on with our basketabll.