—Mrs. Wang was sent to teach English in a poor mountain village last year.—She said she would never forget some pleasant      while working there.

We’re Kate’s ________.I’m her mother’s brother. He is her father’s brother.

 Could you please give me __________?

---It’s a place to get money. What is it?---It’s a       .

More often, the air in Hangzhou is dirty because of _____.