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Giúp mình câu này với ạ thank kiu

Cho tam giác ABC có góc A = a.Các tia phân giác của các góc B và C căt nhau ở I. Các tia phân giác của các góc ngoài đỉnh B và C cắt nhau ở K. Tia phân giác của góc B cắt tia phân giác của góc ngoài đỉnh C ở E. Tính số đo góc BIC, BKC, BEC theo a

Chọn phương án đúng để hoàn thành mỗi câu sau 1. If you book in advance you will certainly have a better table at our restaurant. A. mostly B. almost C. most D. the most 2. Our village had money available for education that the schools had to close. A. so little B. such little C. so much D. such much 3. I had a red pen but I seem to have lost it; I think I'd better buy one. A. the other B. another C. others D. the 4. companies have announced economic losses recently. A. large number of B. a several of C. a great deal of D. plenty of the 5. In life, can make a mistake; we're all human. A. anyone B. someone C. some people D. not anybody

Một người đi quãng đường 40km. Nửa giờ đầu v1 nửa thời gian sau v2 bằng $\frac{2}{3}$ v1. Tính v1,v2 biết rằng sau 1,5h người đó đi hết quãng đường.

tìm hai số có hiệu bằng 133 biết rằng nếu lấy số bị trừ cộng số trừ cộng hiệu thì được 432

giải hộ mình với ạ giải cách lm ấy ạ

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

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