Cho ba đường thẳng AD,BE,CF đônhf quy tại O,trong đó tia OB nằm giữa hai tia OA và OC. Kể tên các góc AOB và các góc kể bù với góc AOB

Giúp ạ 7/10 số hs có là 21.hỏi lớp đó có bn hs

1.TÍNH: a,100+430+2145+(-530) b,(-12).15 c,12.13+13.(-22) d,{[14:(-2)]+7}:2012

$ * $ Tóm tắt những ý chính có thể kiểm tra 15 phút trong bài $ 19 $ Từ sau Trưng Vương đến trước Lý Nam Đế ( Giữa thế kỉ $ I $ $ - $ giữa thế kỉ$ VI $ ) theo vở đã ghi$ . $ $ * $ Mong mọi người đừng vi phạm bản quyền một số nguồn khác trên các trang mạng nhá $ ! $

III. Choose the best answer to fill in the blank. 1. Peter _______ an accident yesterday when he crossed the street. A. studied B. had C. played D. did 2. James is _______ judo in the playground with his friends. A. studying B. doing C. playing D. have 3. Linh _______ a headache so she is sleeping in her bedroom. A. does B. plays C. studying D. has 4. My dad is _______ a cup of coffee with his colleague in the living room now. A. plays B. study C. doing D. having 5. Williams always _______ breakfast with bread, egg and milk before coming to school. A. has B. plays C. studies D. does 6. Nick and Rosy usually help their mom _______ the chores at the weekend. A. study B. do C. playing D. have 7. He often _______ English vocabulary every morning. A. doing B. having C. studies D. plays 8. Phong _______ basketball with his younger brother three times a week. A. does B. has C. plays D. study 9. Emily sometimes _______ a chat with her pen friend in England. A. does B. has C. studies D. plays 10. Jane is _______ History at the moment to prepare for the final exam. A. studying B. doing C. playing D. has 11. You must _______ her report carefully before making a decision. A. do B. study C. play D. have 12. I can sing but I can't _______ the flute. A. play B. do C. study D. have

1.tính a,100+430+2145+(-530) b,(-12).15 c,12.13+13.(-22) d,{[14:(-2)]+7}:2012

Chọn từ phù hợp hoàn thành câu giúp em với ạ

Các bạn giúp mình với!!! Vai trò của kiểu gen và môi trường đối với các loại tính trạng

Giúp mình câu 8-->12, phần B với ạ.

11. The boys rather promised…..…………….. for the window to be repaired. (pay) 12. Ann was having dinner when the phone rang She didn’t answer the phone; she just carried on…..………….(eat) 13. How did the thief get into the house? "I forgot………………the window" (shut) 14. I've enjoyed…… you (meet) I hope……………..you again soon. (see) 15. Then baby began…………………… in the middle of the night. (cry) 16. Julia has been ill but now she's beginning ……………………better. (get) 17/ She (hate) …… …… …… (get) up early. 18/ We are fed up with (eat) ……………………the same food everyday. 19/ My child is bored with (play) …………………… with the same picture. 20/ We like (see) ……………………people living peacefully. 21/Are you interested in (have) …………………… dinner with me this afternoon ? 22/ Mr Long loves (watch) ……………………football on TV. 23/ Nam is used to (stay) ……………………up late. 24/ There's no point in (ask) …………………… him for money. He's broke. 25/ The bad weather prevented us from (go) …………………… on holiday. 26/ (Have) ……………………a talk with a man like him is really interesting.