I.Chuyển các câu sau sang câu bị động

Part 1:

1. My father will repair my bike for me tomorrow.

2. His mother bore him in 2005.

3. I want to buy some food for my family.

4. Sue can paint many beautiful pictures.

5. Roger is making a wooden chair  at the moment.

6. Mr Jack has drunk 3 cups of coffee up to mow.

7. We didn’t pick Mr Steve up until he called last night.

8. Did you ride a motorbike to work yesterday?

9. Sam often helps his mother with the household chores.

10. The examiner asked them a lot of questions.

11. We are going to set up a meeting in this room.

12. They cut down many trees for selling.

13. Mr Phong tried to make his body more and more beautiful.

14. She won’t ask you to help if she can do it.

15. Mahathan and David would like to give Susan a birthday cake, 2 birthday cards and 25 candles for her birthday.

16. They have finished all their work since last Monday.

17. We don’t know him because it’s too dark.

18. Jane often takes the bus A234 to go to school.

19. Tom is cleaning the room while his father is reading a newspaper.

20. Yesterday, I was waiting for John when I saw my form teacher, Mr Karen.

21. I will ask my boss to accept the rule.

22. He threw the paper through the window.

23. You should brush your teeth everyday.

24. Jenny was going to visit her grandparents last night.

25. We hate him singing like that.

Cho tam giác ABC nhọn (có AB < AC ), Vẽ đường tròn tâm O đường kính BC, đường tròn này cắt AB, AC lần lượt tại D và E, gọi H là giao điểm của BE và CD a. Chứng minh: Tứ giác ADHE nôi tiếp một đường tròn. b. Gọi K là điểm đối xứng của H qua O. Chứng minh: 4 điểm A, B, K, C cùng thuộc một đường tròn. c. Cho biết BC = 2R và  góc BAC = 30 độ .Tính diện tích hình quạt giới hạn bởi OD, OE cung nhỏ DE theo R.