--- Why do you tennis for exercise?--- To keep healthy.A. take up B. grow up C. stay up
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.
- He hardly spent any time on his subjects, _______? -_______, so he did badly in his lessons.