Mary can't understand such sentences as "She is blue today." "You are yellow." "He has a green thumb  ." "He tells a white lie." and so on. And she goes to her teacher for help. Mary: Mrs. Smith, there is a colour in each of these sentence. What do they mean? Mrs. Smith: In everyday English, blue sometimes means sad. Yellow, afraid. A person with a green thumb grows plants well. And a white lie is not a bad one. Mary: Would you please give me an example of a white lie? Mrs. Smith: Certainly. Now I give you some cake. In fact, you don't like it. But you won't say it. Instead, you say, " No, thanks. I'm not hungry." That's a white lie. Mary: Oh, I see. Thank you very much. He is yellow. Tom is   _   to climb the tree.
happy clever glad afraid