---What did Lu Xun do after he gave up medicine?---He devoted ______writing all his life.
_______ good suggestion ! I haven't heard of_______ wonderful advice for a long time.
Most Americans would prefer to keep their problems_______ themselves and solve their problems_______ themselves.
He felt even_______ when_______ he failed the Math exam again.
The best way to learn English is_______ you_______ in an English-speaking environment.
- Madam, would you mind my opening the window? -_______. My baby has a cold.