Đáp án :

8. speak

9. have established

10. does the last train to Dublin leave

11. am living

12. is

13. Have you ever been...have been 

14. are you going to go

15. have visited

8. About 375 million peopleAbout 375 million people speak  English as their first language.

9.To preserve natural habitat, the government have established six national parks so far.

10.Excuse me, what time does the last train to Dublin leave?

11.I am living in the UK at the moment to learn English.

12. English is an official language in several African countries, such as Liberia, Nigeria, and South Africa.

13. Have you ever been to Singapore? Yes, I have been there twice.

14. Where are you going to go on your holiday next summer?

15. Over 670 million people have visited Disneyland since its opening in 1955.