She _____ an old friend of hers yesterday while she was shopping at the department store.

Parents have a duty to ____ their children from the harmful effects of the Internet.

The theory _____ correct immediately the experiment was completed.

There’s little doubt _____ we will _____ the game.

---Did you enjoy the movie?
---Sure, it is _____ a beautiful country town with a variety of cultures.

—Did Zhou Libo say anything that _____ you in Mr Zhou Live Show?
—Not really. Actually I slept through his performance.

I’ve read a variety of science fictions, but few of them _____ the one that you lent me yesterday.

–You’re coughing badly, Martin. Why not give up smoking?
--Give up smoking? Easier said than done, Amy. Once you _________ the habit of smoking, it is very had for you to _________.

He tried hard to keep calm in face of the policemen, but the sweat on his forehead _________.

It suddenly __________ to the detective that the millionaire was probably murdered by his own daughter.