11. We should _______ from Zhe Zhigang.

A. study              B. learn                      C. teach                  D. know

12. She _______ in the sports meeting and won the first medal.

A. took part         B. joined                     C. attended              D. entered

13 I am excited to see Yang Liwei, a _______ astronaut.

A. 38-year-old  B. 38-years-old             C. 38 years old         D. 38 year old

14. We are tired. Let’s stop _______ and have a _______.

A. walk, rest        B. walking, rest           C. to walk, resting    D. walks, resting