Fill in "since" or "for"
1. .......................... ages
2. .......................... three years ago
3. .......................... I had a holiday
4. .......................... February
5. .......................... two days
6. .......................... ten o'clock
7. .......................... a year
8. .......................... I got up this morning
9. .......................... ten hours
10. .......................... Christmas
11. .......................... a long time
12. .......................... March
13. .......................... yesterday
14. .......................... I was ten
15. .......................... an hour
16. .......................... two days ago
17. .......................... May
18. .......................... Monday
19. .......................... a day
20. .......................... 15 minutes
Cho đường tròn O bán kính R. Từ điểm A ở ngoài đường tròn vẽ hai tiếp tuyến AB, AC,AO cắt BC tại H
a, CM: AO vuông góc với BC
b, cho AB= 10cm, AH = 8cm. tính R
c, gọi M,N lần lượt là trung điểm của AB, AC. D là điểm trên đường tròn O bán kính R sao cho tiếp tuyến đường tròn tại D cắt đường thẳng MN tại I. chứng minh IA = ID
giải chi tiết giùm mình với ạ. mình tik cho
Each of the following sentences has one mistake. Identify the mistake by writing the letter A,B,C,D
1. This is a difficult question for all students, isn't this
2. What about put rubbish bins around the schoolyard?
3. She turned up her radio at the lowest in order not to disturb the others at night
4. Mrs. Jones, along with her cousins, are planning to attend the festivities
5. He answered those question perfect because he was intelligent
Chọn đáp án đúng
1. They have changed the date of the meeting. The date of the meeting ..............
a, was changed b, is changed c, has been changed d, changes
2. I had ............... in the countryside with my family last month
a, three - weeks vacation b, a three - weeks vacation c, three - week vacation d, a three - week vacation
3. I have known Jane and her family .................... six years
a, since b, for c, from d, in
4. Not many people think that country life is ................
a, bore b, boring c, bored d, boringly
5. Mrs. Thoa is generous to the poor ........................ she is not rich
a, so b, but c, however d, although