4. She goes to work at a quarter to nine.

5. Can you tell me the way to the national Museum?

6. American students have more vacations than Vietnamese ones.

7. You aren't allowed to use your mobile phone in class.

8. Our summer vacation lasts 2 motnhs.

9. You suggest listening to the weather forecast before going camping.

10. Minh is better at English than Nam.

4. She goes to work at eight forty-five

⇒ She goes to work at a quarter to nine

5. Would you mind telling me the way to the national Museum?

⇒ Can you tell me the way to the national Museum?

6. Vietnamese students have fewer vacations than american ones

⇒ American students have more vacations than Vietnamese ones

7. It's against the rules to use your mobile phone in class

⇒ You aren't allowed to use your mobile phone in class

8. We have a two-month summer vacation

⇒ Our summer vacation last 2 months 

9. It's a good idea to listen to the weather forecast before going camping

⇒ You suggest listening to the weather forecast before going camping

10. Nam isn't so good at english as minh

⇒ Minh is better at English than than Nam