Bài 8: Cho ∆ ABC vuông tại A. Vẽ AH vuông góc với BC tại H. Trên cạnh BC lấy điểm D sao cho BD = BA. a) Chứng minh: góc BAD = góc ADB b) Chứng minh: AS là phân giác của góc HAC c) Vẽ DK vuông góc AC ( K thuộc AC). C/m: AK = AH giúp mik vs hứa vote 5 sao

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GIÚP E VS Ạ B. PAST CONTINUOUS: 1. While I __________ (drive) home, Peter __________ (try) desperately to contact me. 2. She ___________(talk) to me on the phone and it suddenly _________(go) dead 3. It was beautiful yesterday when we went for a walk in the park. The sun______________(shine). The birds_____________(sing) 4. My brother and sister ________________ (talk) about something when I ________________ (walk) into the room. 5. Tom went to his friends ‘house, but the boys ___________________ (not be) there. They (play)_____________soccer in the vacant lot down the street 6. The little boy _______________ (fall) asleep while his mother___________________ (read) him a story. 7. I really enjoyed my holiday last January. While it_______________(snow) in Iowa, the sun ______________ (shine) in Florida. 8. While Ted _______________ (shovel) snow from his driveway yesterday, his wife______________ (bring) him a cup of hot chocolate 9. They ___________________(wait) for me when I _________________ at the station (arrive) 10. While I _____ (study) in my room, my roommates ________ (have) a party in the other room. Exercise 3: Cho dạng đúng của các động từ trong ngoặc 1. I (just/ see) ______________Andrew and he says he (already, do) ______________about half of the plan. 2. I (not, live)______________ with my family now and we (not/see) ______________ each other for five years. 3. How many bottles______________ the milkman (leave) ______________? He (leave) ______________ six. 4. I (turn) ______________ the heating on. It (soon, get)__________ warm in here 5. She (live)__________ here since I (born)____________ 6. We (encounter)___________ many difficulties while (work)__________on that project 7. He (write)______________ three blogs and he (work)___________ on another blog 8. This (be)____________ the most interesting game I (ever, play)___________ 9. How long you (learn) ______________Japanese? I ( learn) ______________ it since 2015 10. I (just, realize) ______________ that there (be)___________ only seven weeks to the end of term

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V. Supply the correct form of the verbs, write your answers in the boxes. 1. Nam (learn)…………..…………….English in his room now. 2.She( go )………….. …………………………...to scholl yesterday. 3.How many books (be)……………………..there on the table? 4. Nga (have)………………………… many friends at school. 5. He should (help)……………………… your mom with the housework . 6. They (not do) ………………………………. our homework every day. 7.You must ( do) ………………………………………your homework 8 They (play) soccer now? …………………………………………………………………………………… 9. He(do) his homework every day?…………………………………………………………………………... 10.He (play) piano last Sunday?.........................................................................................................................

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GIÚP E VS Ạ UNIT 11 1. Cuc Phuong National Park is ________________ 160 km South West of Hanoi. (location) 2. It is the first of Vietnam's nine national parks to be established and it ________________ over 200 square km of rainforest. ( contain ) 3. Nairobi National Park is Kenya's smallest park, but you may be ________________ at the large variety of animals that live there. (surprising) 4. An interesting feature of this park is the Orphanage where lots of orphaned or ________________ animals are taken care of. (abandon) 5. This ________________ has threatened the park and many of the animals in it. (contaminate) 6. This contamination has _______________ the park and many of the animals in it. (threat) 7. What do you think will happen to the park if more chemicals are ________________ into the water? (releasing) 8. Visitors, especially children, can go there to learn how to recognize the ________________species of animals and plants. (difference) 9. This national park is special because it has plants and animals from both ________________ and temperate zones. (tropically) 10. His father was working ________________ at national park (industrious) 11. Inflation figures have fluctuated _______ between 0.2% and 25% (wild) 12. For a goalkeeper, it's a great _______ to have big hands. (advantageous) 13. She first rose to _______ as a singer at the age of 16. (famous) 14. Such data will prove _______ for researchers (valued) 15. Dolphins are a _______ species (protectively) II. TENSES Exercise 1: Cho dạng đúng của các động từ trong ngoặc 1. I thanked her for everything she (do)____________for me. 2. Alan ___________hardly _____________(prepare) for dinner when her husband went home 3. Dan_______________two tablets this year. (already/ buy) 4. How many games_____________your team ____________ so far this season? (win) 5. ____________ you __________your homework yet? (do) 6. I_____________Peter since I arrived last Tuesday. (not/ see) 7. They went home after they (finish) ___________________their work. 8. She said that she (already, see) __________________Dr. Rice. 9. After Peter (take)_______________ a bath, he went to bed. 10. He told me he (not/eat) ________________such kind of food before. 11. When he came to the stadium, the match (already/ begin) _________________. 12. Before she watched TV, she (do)_________________ homework. 13. After they (go)_______________, I sat down and rested. 14. Yesterday, John (go) _____________to the store before he went home. 15. No sooner ___________I (watch)____________ TV than the phone rang. 16. Before I watched TV, I (do) ________________my homework. 17. After I (wash)______________ my clothes, I went to sleep. 18. It is the first time I ______________ (eat) sushi 19. She didn’t notice that she (never see) ______________that film before. 20. I suddenly remember that I __________________ (forget) my keys. Exercise 2: Cho dạng đúng của các động từ trong ngoặc A. PRESENT CONTINUOUS: 1. Hannah __________________ (not study) French in the library. She________ (be) at home with her classmates. 2. My kids (be)____________downstairs now. They (play)_____________chess. 3. While I (do)____________my homework, my sister (read) __________ newspapers. 4. She normally ____________ (live) in Northbridge but she _________________ (stay) with friends at the moment. 5. What sort of clothes _______ teenagers ________ (wear) nowadays? What sort of music _______ they __________( listen) to? 6. Paul and Sally___________ (have) had an argument they __________________ (speak) to each other. 7. You ____________ (make) a lot of noise. Can you be quieter? I _____________ (try) to concentrate. 8. Kate phoned me last night. She is on holiday in France. She__________ (have) a great time and ___________( not, want )to come back. 9. Tommy (clean) _______ his house and his father (repair) _______ their old car at the moment. 10. I (read) _________ this book but my sister (not read) __________ now.