— I didn’t know you were friends with Mr. Smith.
— We ______ each other for6 years.
| A．knew | B．are known | C．have known | D．will know |
—Do you know _____ ? I'm going to see him.
—Sorry, I don't know.
| A．where does Mr. Li live | B．where did Mr. Li live |
| C．where Mr. Li lives | D．where Mr. Li lived |
Let’s ask Mr. Wang for ________ about the earthquake.
| A．an information | B．informations |
| C．some information | D．some informations |
I often make mistakes ___________ grammar..
| A．by | B．through | C．across | D．in |
--- ________. Could you tell me the way to the station?
| A．Pardon me | B．Excuse me |
| C．Sorry | D．Ok |
— It’s dangerous to swim in this river.
— Yes, you are right. The government has _________ people not to swim in it.
| A．trained | B．warned |
| C．led | D．encouraged |