Mary can’t understand such sentences as “She is blue today.”

Mary can’t understand such sentences as “She is blue today.” “You are yellow.” “He has a green thumb (大拇指).” “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.
小题1: Blue sometimes means sad in ________ English.

A．good

B．spoken

C．dirty

D．poor

小题2:I don’t have a green thumb, so all my plants _________.

A．die off

B．grow well

C．look nice

D．are good

小题3:He is yellow. Tom is ______ to climb the tree.

A．happy

B．clever

C．glad

D．afraid

小题4:He is ______ today. It means his father is ill.

A．blue

B．yellow

C．green

D．white