--- How many hours do they exercise every day? ----________. A. Twice a day B. Often C. Two
- Why didn't you buy the dress? The colour looks good on you. -I think it is the quality that_______.
- What do you think of the film? - Wonderful! You_______ praise it_______ much
- What's wrong with Mary? - She's_______ at her sister's bad behavior.
- How do you communicate_______ your friends? -I like to chat with them_______ the Internet.
- Who is the boy over there under the tree? - He's Li Ming, _______ leader of_______ university football team.