1. The Great Wall is world-famous.

This city was liberated in 1948.

This matter will be discussed tomorrow.

This issue is under discussion at present.

The boy was undergoing surgery when his parents rushed to the hospital.

This bridge has been completed this month.

Before I came to the cinema, the tickets had been sold out.

He said that he would return the book to him as soon as he finished reading it.

9. The door is locked.

10. My bike was repaired yesterday.

1 1. The bridge is under construction.

12. A new school will be built here.

13. The price has been raised.

14. The baby is well taken care of.

15. I heard that the boy won the game.

Examples of the present perfect tense:

1. I just finished my work.

Have you ever been to Beijing?

I have already done it.

He has closed the door.

She opened the door.

6. I have lived for ten years.

7. I have been in this city for ten years.

8. We have finished the task.

9. How long have you been here?

10. Have you ever been to Beijing?

1 1. We have been studying here since 2003.

12. He has left.

13. He has been away for an hour.

14. Can I borrow that book?

15. How long can I keep this book?

Examples of attributive clauses:

1. She was satisfied with the way he accepted her criticism.

They don't do what we do now.

Let's just discuss the problems that are related to each of us.

I have never heard such a story told by him.

I have never seen such a clever man as him.

As we all know, the earth moves around the sun.

7. He doesn't talk like me.

As expected, he successfully completed the task.

As he predicted, the wind changed.

10. This meeting is very important, as it is.

1 1. Mr. Brown lives near our school. He is our English teacher.

12. I met my son's principal yesterday, and you met him at my home last year.

13. He has finished the difficult exercise, which is easy for you.

14. This factory is led by a 35-year-old man whose wife is from America.

15. They will fly to Qingdao and plan to stay there for two weeks.

16. In these days when I was a child, there was no industry in this city.

17. It's very kind of them to invite me to visit their country.

18. Yesterday afternoon we came to his wooden house, in front of which stood a tall building.

Trees.

19. There are forty students in their class, among whom thirty are league members.

20. Yesterday I saw a man whose shirt was dirty.