— Why do you do volunteer work in the North-West?— I_______ to improve the lives of the children there through my efforts.
25.Why didn’t you tell me there was no meeting today? I all the way here the heavy snow.
24.For quite students, their teacher’s advice is more important than of their parents.
23.He is neither European, nor American. He is from Australia.
22.The music he is playing sounds .
21.--- May I take your order now? --- .