5.Look!The concert.....starts....(start) at 7 P.M and...ends.....(end) at 9 P.M.

6.Canada....provided.....(provide) fish,furs,and other natural resources to the world since the 15th century.

7.We've already booked our holiday.We....will go...(go) to Scotland in July.

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

9.To preserve natural habitat,the government.....has established........(establish) six national parks so far.

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

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

13. .....Have you ever been........(you/ever/be) to Singapore?-Yes,I ...was..(be) there twice.

14.Where.......will you go.......(you/go)on your holiday next summer?