What troubled the teacher was that no one present made an answer when asked who had broken the glasses, so he didn’t know who _____________.
They are teachers and don’t realize _______ to start and run a company.
The thought _______ he would open a Sichuan restaurant in Los Angeles surprised his wife.
Air, or _______ is called the atmosphere, surrounds the whole world.
—I really like the record you lent me. —_______.
—I don’t feel like going out.Why don’t we watch TV at home? —_______You promised to take me out for dinner.