⑴What did you do yesterday?____            A. Over the Internet.

⑵What does your uncle do?____               B. Four tons.

⑶How heavy is the elephant?____             C. I climbed mountains.

⑷How tall is he?____                                  D. Interesting.

⑸What do you think of the book?____      E. He's a postman.

⑹How do you know that?____                   F. 170 cm.