If you have a toothache, you can see him. He is a __________.A. teacher B. dentist C. policeman
—Were you at home at 9:00 last night? I called you but nobody answered. —Sorry, I ________ at that time.
—May I speak to the headmaster?—He a meeting now. Can I take a message?
Tom hardly hurt himself in the accident, ________?
If our government attention to controlling food safety now, our health ________ in danger.
He ________ go out with his parents, but now he ________ staying at home alone.