Test+Unit+three

**Test Unit three **
Part I: Rewrite these sentences using a gerund**
 * 

1. It is often difficult to save money. 2. It's good for you to swim. 3. Air travel is getting faster and faster. 4. It's fun to cook for friends. 5. Cigarettes are bad for you. 6. It's not good for you to watch too much TV. 7. It's great to go to the movies with friends. 8. It is healthier to go to walk to work.


 * Part II: ****Complete with the corresponding question tag and the punctuation marks required.** 

1. They have been to Europe 2. That wasn't very nice 3. You can swim 4. I won't see you tomorrow 5. He's coming too 6. The movie starts at six 7. They don't like fish 8. He waited for Helen for 30 minutes 9. She has been late for week every day this week 10. She goes swimming every Morning