——Have the police caught the thieves _____ the bank last week?——Yes, they were caught yesterday.
—Shh! ________! The film has begun.—Oh, I’m sorry.
I think the Grand Canyon is unusual natural wonder of the world.
—Our country _____ progress in science and culture in recent years.
When we went into the park, we saw someone _____ Chinese Kungfu.
—Have you ever _____ Mudanjiang to see the Jingbo Lake?—Yes, I have.