Tg ABC ab<ac ad là pg . Trên tìa đối da lấy M sao cho góc bad=góc dmc. Cm a) AB.DM=BD.DC b) tam giác ABD đồng dạng vs tam giác MCD c) gọi BE, CF là các đường pg của tg ABC. Cmr AF/FB. BD/DC. CE/EA=1

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Ex5:Chia động từ trong ngoặc đúng dạng thì quá khứ đơn 1. I _____ at home all weekend. (stay) 2. Angela ______ to the cinema last night. (go) 3. My friends ______ a great time in Nha Trang last year. (have) 4. My vacation in Hue ______ wonderful. (be) 5. Last summer I _____ Ngoc Son Temple in Ha Noi. (visit) 6. My parents ____ very tired after the trip. (be) 7. I _______ a lot of gifts for my little sister. (buy) 8. Lan and Mai _______ sharks, dolphins and turtles at Tri Nguyen aquarium. (see) 9. Trung _____ chicken and rice for dinner. (eat) 10. They ____ about their holiday in Hoi An. (talk) 11. Phuong _____ to Hanoi yesterday. (return) 12. We _____ the food was delicious.(think) 13. Yesterday, I (go)______ to the restaurant with a client. 14. We (drive) ______ around the parking lot for 20 mins to find a parking space. 15. When we (arrive) ______ at the restaurant, the place (be) ______ full. 16. The waitress (ask) ______ us if we (have) reservations. 17. I (say), "No, my secretary forgets to make them." 18. The waitress (tell)______ us to come back in two hours. 19. My client and I slowly (walk) ______ back to the car. 20. Then we (see) ______ a small grocery store. 21. We (stop) in the grocery store and (buy) ______ some sandwiches. 22. That (be) ______ better than waiting for two hours. 23. I (not go) ______ to school last Sunday. 24. She (get) ______ married last year? 25. What you (do) ______ last night? - I (do) ______ my homework. 26. I (love) ______ him but no more. 27. Yesterday, I (get) ______ up at 6 and (have) ______ breakfast at 6. 30. 28. They (buy) ................ that house last year. 29. She (not go) ............. to school yesterday. 30. That boy (have) ............... some eggs last night. Ex6:Dùng từ gợi ý viết thành câu hoàn chỉnh ở thì Quá khứ đơn 1. I/ go swimming/ yesterday. => ________________________________ 2. Mrs. Nhung/ wash/ the dishes. => ________________________________ 3. my mother/ go shopping/ with/ friends/ in/ park. => ________________________________ 4. Lan/ cook/ chicken noodles/ dinner. => ________________________________ 5. Nam/ I/ study/ hard/ last weekend. => ________________________________ 6. my father/ play/ golf/ yesterday. => ________________________________ 7. last night/ Phong/listen/ music/ for two hours. => ________________________________ 8. they/ have/ nice/ weekend. => ________________________________ 9. she/ go/ supermarket yesterday. => ________________________________ 10. We/ not go/ school last week. => ________________________________

A. Use the Past form of the verbs. 1. Yesterday, I (go) to the restaurant with my friends. 2. We (study) English 2 hours ago. 3. My brothers (play) soccer yesterday morning. 4. The last soccer match (be) very exciting. 5. Hoa (receive) a letter from her aunt last week. 6. The doctor (ask) Ba some questions. 7. Hoa (fill) in her medical record 15 minutes ago. 8. He (be) busy yesterday. 9. She (live) in Ha Noi in 2004. 10. Yesterday, I (get) up at 6 and (have) breakfast at 6.30. B/ Change these sentences into the negative form. Ex1: She (live) didn’t live in Ha Noi in 2004. Ex2: I (get) didn’t get up at 6 and (have) didn’t have breakfast at 6.30. 1. Yesterday, I (go) to the restaurant with my friends. 2. We (not study) English 2 hours ago. 3. My brothers (not play) soccer yesterday morning. 4. The last soccer match (be not) very exciting. 5. Hoa (not receive) a letter from her aunt last week. 6. The doctor (not ask) Ba some questions. 7. Hoa (not fill) in her medical record 15 minutes ago. 8. He (be not) busy yesterday. C/ Change these sentences into the interrogative form. 1. She bought a new dress yesterday. → . 2. They were late for school yesterday morning. → . 4. Mr. Tam took his children to the museum last Sunday. → . 5. Hoa made a cushion for her armchair last week. → . 6. They painted their house yellow last year. → . 7. Her mother gave her a blue dress last month. → . 8. I saw her two days ago. → . 9. I went to Nha Trang last summer vacation. → . 10. Mrs. Robinson put the poster on the wall two days ago. →