Giúp mình ý a thôi nha, thank các you nhiều

Bài 1: 1. I (learn) English for seven years now. 2. But last year I (not/ work) hard enough for English, that's why my marks (not/ be) really that good then. 3. As I (pass/ want) my English exam successfully next year, I (study) harder this term. 4. During my last summer holidays, my parents (send) me on a language course to London. 5. It (be) great and I (think) I (learn) a lot. 6. Before I (go) to London, I (not/ enjoy) learning English. 7. But while I (do) the language course, I (meet) lots of young people from all over the world. 8. There I (notice) how important it (be) to speak foreign languages nowadays. 9. Now I (have) much more fun learning English than I (have) before the course. 10. At the moment I (revise) English grammar. 11. And I (begin/ already) to read the texts in my English textbooks again. 12. I (think) I (do) one unit every week. 13. My exam (be) on 15 May, so there (not/ be) any time to be lost. 14. If I (pass) my exams successfully, I (start) an apprenticeship in September. 15. And after my apprenticeship, maybe I (go) back to London to work there for a while. 16. As you (see/ can), I (become) a real London fan already. Bài 2: Chọn đáp án đúng nhất 1. When I last saw him, he _____ in London. A. has lived B. is living C. was living D. has been living 2. We _______ Dorothy since last Saturday. A. don't see B. haven't seen C. didn't see D. hadn't seen 3. The train ______ half an hour ago. A. has been leaving B. left C. has left D. had left 4. Jack ______ the door. A. has just painted B. paint C. will have painted D. painting 5. My sister ________ for you since yesterday. A. is looking B. was looking C. has been looking D. looked 6. I ______ Texas State University now. A. am attending B. attend C. was attending D. attended 7. He has been selling motorbikes ________. A. ten years ago B. since ten years C. for ten years ago D. for ten years 8. Christopher Columbus _______ American more than 500 years ago. A. discovered B. has discovered C. had discovered D. had been discovering 9. He fell down when he ______ towards the church. A. run B. runs C. was running D. had run 10. We _______ there when our father died. A. still lived B. lived still C. was still lived D. was still living 11. They ______ table tennis when their father comes back home. A. will play B. will be playing C. play D. would play 12. By Christmas, I _______ for Mr. Smith for six years. A. will have been working B. will work C. have been working D. will be working 13. I _______ in the room right now. A. am being B. was being C. have been being D. am 14. I ______ to New York three times this year. A. have been B. was C. were D. had been 15. I'll come and see you before I _______ for the States. A. leave B. will leave C. have left D. shall leave 16. The little girl asked what _______ to her friend. A. has happened B. happened C. had happened D. would have been happened 17. John ______ a book when I saw him. A. is reading B. read C. was reading D. reading 18. He said he _______ return later. A. will B. would C. can D. would be 19. Jack ________ the door. A. has just opened B. open C. have opened D. opening 20. I have been waiting for you ______. A. since early morning B. since 9 a. m C. for two hours D. All are correct 21. Almost everyone _______ for home by the time we arrived. A. leave B. left C. leaves D. had left 22. By the age of 25, he ______ two famous novels. A. wrote B. writes C. has written D. had written 23. When her husband was in the army, Mary ______ to him twice a week. A. was reading B. wrote C. was written D. had written 24. I couldn't cut the grass because the lawn mower ______ a few days previously. A. broke down B. has been broken C. had broken down D. breaks down 25. I have never played badminton before. This is the first time I _____ to play. A. try B. tried C. have tried D. am trying 26. Since _______, I have heard nothing from him. A. he had left B. he left C. he has left D. he was left

Các bạn và các anh chị giúp e làm bài 8 và 9 vs ạ

với a+b+c=1. cmr P =√3(ab)+√3(bc)+√3(ac)<=√3(3)

Khi thực hiện hoạt động để hình thành kiến thức mới trong bài học, học sinh sẽ được sử dụng những thiết bị dạy học/ học liệu nào?

1. Kim loại chứa tất cả các gốc muối đều tan? 2. Muối tan trong nước? 3. Muối không tan trong nước? 4. Độ tan là gì? 5. Độ tan của chất rắn phụ thuộc vào? 6. Bazo không tan? 7. Axit không tan trong nước?

Ực.... hình như tôi chiều các em quá rùi các em hư phải hông vẽ anime nam đang buồn ngủ ( vẽ full người ) nhưng miễn các em thích... Ực... các em có thể vẽ nửa người

Trên tia Ox lấy ba điểm A; B; C sao cho cho OA bằng 2cm; OB = 5cm; OC = 8cm: a) trong ba điểm A; B; C điểm nào là trung điểm của đoạn thẳng có hai đầu mút là hai điểm còn lại. b) Gọi H; I; K lần lượt là trung điểm của các đoạn thẳng OA; OB; BC Tính độ dài đoạn thẳng HK; HI; IK.

Ex1 : Chia động từ ở thì hiện tại hoặc thì hiện tại tiếp diễn 1. I (live)_________________in Hai Duong town 2.He ( water)_________________flowers in the garden. 3. 5.At the moment,my sisters(play)___________volleyball and my brother(play)___________soccer. 4. In the summer,I usually(go)____to the park with my friends,and in the pring, we(have)______________Tet holiday;I(be)_________________happy because I always(visit)_________________my granparents. 5.Today,we(have)_________________english class. 6. Keep silent ! I (listen )_________________to the radio. 7. ______________ you (play)_________________badminton now? 8. Everyday, my father (get up)_______________at 5.00 a.m. 9. At the moment, I(read)_______________a book and my brother (watch)_______ TV. 10. Ha never (go)___________fishing in the winter but she always (do)________ it in the summer. 11. _______________he (watch)______________TV at 7.00 every morning? 12. Mrs. Smith (not live)_______________in downtown. 13. _________You (live)________near a market? 14. John (not have)______________Literature lesson on Friday. 15. My brother (not live )______________in London; he (live)___________ in Manchester.

a) |x+4/5|-1/2=3/2 b) |x-1|+2=4 c) |n|+n=0 d) x+|x|=2x