1 . Mr. Li is very ________ (严肃) in his math class, he never smiles.

2 . Who do you think is ________ (funny) actor, Pan Changjiang, Zhao Benshan, or Chen Peisi?

3 . Zheng Qinwen is really ________(辛勤的;工作努力的), so she wins the championship.

4 . We Chinese people are _________ (勤奋的) and kind.

5 . His behaviour made me feel ________, lively and warm. (happiness)

6 . Linda is s________. She is afraid to speak to her new friends.

7 . Tom works hard at school. He is as ___________ (辛勤的) as his sister Alice.

8 . —The manager has decided to give us an extra day's holiday for our hard work.
—You can't be ______. It's impossible.