— Do you know sound travels very fast? — Yes. But light travels sound.
- You seem familiar with Mr. John?-Of course, we_______ together for three years in the 1990s.
The new law says that people_______ drive after drinking wine.
You will fall behind others_______ you work hard.
-I don't know about you, but I'm sick and tired of this weather.-_______. I can't stand all this rain.
- What do you want to be when you grow up?-I want to be_______ social worker. Many people are in great need of our help.