——Now lots of teenagers spend a lot of time playing computer games. ——Yes. Teachers and their parents should prevent them ______________ too much.
She________ her hometown for many years. No one nearly knows her.
—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? —Hea meeting now. Can I take a message?
Tom hardly hurt himself in the accident, ________?
If our governmentattention to controlling food safety now, our health ________ in danger.