Cho Δ ABC nhọn nội tiếp đường tròn (O). Các đường cao AD, BE, CF của Cho Δ ABC cắt nhau tại H. 1, Chứng minh AF.AB = AE . AC 2, Chứng minh DH là tia phân giác của góc EDF. 3, Giả sử góc ACB = 60độ , chứng minh 2EF + BF = √3 . CF

giúp vs ạ Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined word(s) in each of the following questions. Question 17: I like taking part in the rice-cooking contest. (1 Điểm) A. enjoy B. famous for C. good at D. well known 21.Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. Question18: His parents are happy that he passed the examination. (1 Điểm) A. new B. sad C. young D. bad 22.Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. Question19: The dress which I bought yesterday was cheap. (1 Điểm) A. expensive B. comfortable C. large D. beautiful 23.Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. Question 20: Would you mind to open the windows for me? (1 Điểm) A. Would B. to open C. the D. for 24.Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. Question 21: My parents has visited New York since I left school. (1 Điểm) A. has B. visited C. since D. left 25.Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions. Question 22: Finally, we decided going to the cinema by bus. (1 Điểm) A. Finally B. decided C. going D. by 26.Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks . Ha Long Bay is popular (23) ................ both Vietnamese and international tourists. One of the(24)............... of Ha Long is the Bay’s calm water with lime stone mountains. The Bay’s water is clear during the spring and early summer. Upon arriving in Ha Long City, visitors can go along Chay Beach. From the beach, they can(25).............. a boat and go out to the Bay. It is here that the visitors can find some of Southeast Asia’s most beautiful sites. Dau Go Cave (26).............. one of the most (27)............ caves at Ha Long. Question 23. (1 Điểm) A. about B. at C. in D. with

hộ mik vs ạ xong mik vode 5 sao

Viết một đoạn văn khá dài về một phương tiện giao thông tương lai trong bài,bao gồm cả sự thật và ý kiến về phương tiện đó

Nhận xét về cách dùng câu rút gọn trong những đoạn trích sau: a. Hôm nay đi học về, Nam bực bội vì không được đi đá bóng. Vừa về đến nhà mẹ hỏi: - Hôm nay con đi học thế nào, có vui không? - Chẳng vui gì cả. Chán. Con không được đá bóng- Nam đáp lời mẹ. b. Một người đi đường vội hỏi: - Cháu ơi! Cho ông hỏi gần đây có cửa hàng tạp hoá nào không? - Không! Ông phải đi khoảng 600m nữa mới có!

Calli Muốn bắt cọp thì vào sở thú, muốn tìm chỗ trú thì vào tim em. Pic ksi pic ko

Tìm hai soos hữu tỉ x và y sao cho x-y = x.y = x:y (y khác 0)

giúp mình vs ạ plsssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss

Bài 5 : Chia động từ thì Hiện tại tiếp diễn để nói về những dự định, kế hoạch trong tương lai. 1. Sue……..(come) to see us tomorrow. 2. I …………….(not work) this evening. 3. My friends ………….( travel) to York at the weekend. 4. She ……………….( leave) at 3 o’clock . 5. Our grandmother…………….( visit) us at Christmas. 6. He ……………( pick) me up at one o’clock. 7. I…………..( visit) my grandmother next summer. 8. What………we …………(prepare) for dinner? 9. Where…………you………….( go) for your vacation. 10. My father………..( drive) to Manchester on Friday. Bài 6 : Dựa vào gợi ý trong ngoặc, hãy trả lời các câu hỏi dưới đây để nói về kế hoạch vào tuần sau của Ms. Kim. Đừng quên sử dụng cấu trúc câu thì hiện tại tiếp diễn. 1. What is Kim doing on Monday evening? ( to meet Tom) ______________________________________ 2. What is she doing on Tuesday afternoon? ( to look after Carol’s kids) ______________________________________ 3. What is she doing on Tuesday evening? ( play badminton) ______________________________________ 4. What is she doing on Wednesday morning? ( see the dentist) ______________________________________ 5. What is she doing on Wednesday evening? ( work late) ______________________________________ 6. What is she doing on Thursday afternoon? ( pick up Jen from the airport) ______________________________________ 7. What is she doing on Friday evening? ( go to a concert) ______________________________________ 8. What is dhe doing on Saturday morning? ( go on a sight-seeing tour with Jen). ______________________________________ 9. What is she doing on Saturday evening? ( organise a party) ______________________________________ 10. What is she doing on Sunday morning? ( take Jen to the airport) ______________________________________ .

1. Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions. Question 3: A. prison B. include C. wonder D. valley 2.Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions. Question 4:A. festival B. concern C. connect D. compile 3.Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Question 5: Mr. Smith got up early ________to get to the meeting on time. A. in order B. so that C. in order to D. so as to 4.Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Question 6: Mr. Lam asked me if I ________ him this dictionary. A. give B. to give C. gave D. giving 5.Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Question 7: What time _______ Miss Lien be here tonight? A. was B. are C. will D. does 6.Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Question 8: Would you mind ________ the washing up for me tonight? A. do B. doing C. did D. to do 7.Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Question 9: He fell off the tree and________ .A. was injured B. were injure C. were injured D. was injure 8.Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Question 10: Will you _____________ the window, please?A. to open B. open C. opens D. opening 9.Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Question 11: It’s difficult ________ that exercise.A. do B. to do C. does D. doing 10.Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Question 12: The girl ________ next to Lan is a new student.A. standing B. stand C. to stand D. stands