.It is difficult for any of us to eat better, exercise more, and sleep enough,________ we know we should.
Our town has dozens of factories, ____ several sawmills.
What should the people do to solve the food problem if they live in hilly areas ____ is hard to grow crops?
Television, marked by rapid change and refinement, is entering a new period, ____ to reshape our life and our world.
---- Does anyone want to go to the theatre? --- Whom would you rather ____ with you, John or Ted?.
I think it was George who said this, ____ ? A don’t I B. doesn’t he C. didn’t he D. wasn’t it