Làm giúp mình với Cho tam giác ABC (AB< AC) nội tiếp đường tròn (O) với BD, CE, AF, là đường cao đồng quy tại H. AF cắt (O) tại K. KD cắt (O) tại J. BJ cắt ED tại I. DL vuông góc với AB tại L. Chứng minh tứ giác ALIJ nội tiếp đường tròn.

(x+2)^3 + (3*x-1)*(3*x+1) =(x+1)^3

Cho hình chóp SABCD, ABCD là nửa lục giác đều nội tiếp đường tròn bán kính AB. AB = 2a. SA = a căn 3 Tính góc giữa (SAD) và (SBC) Giúp e với :((

Cho 1 số tự nhiên n, hãy cho biết các ước số dương của n

Write a review of your favourite film. mọi người giúp em vs em cần gấp em cảm ơn

4. I was very tired but thet wanted that I go out with them for a walk Sửa lỗi câu này giúp mình với ạ

Nhờ những điều kiên thuật lợi nào mà đồng bằng sông cửu long trở thanh vùng trọng điểm lúa lớn nhất của nc ta

Giá trị của quyền bầu cử , ứng cử đối với bản thân em

11 Choose the best option A, B, C or D to complete the sentences below. If we have sky-cycling tubes in the future, the air ----------- better than it is today. A. is B. isn’t C. won’t be D. will be 12 Choose the best option A, B, C or D to complete the sentences below. If people ----------- the rules, there are no more accidents. A. remember B. follow C. obey D. take care of 13 Choose the best option A, B, C or D to complete the sentences below. There are ----------- cars in the street at this time because of the social isolation. A. less B. more C. much D. fewer 14 Choose the best option A, B, C or D to complete the sentences below. This morning I couldn’t go to work in time because of ----------- roads. A. supersonic B. solar-powered C. gridlocked D. high-speed 15 Choose the best option A, B, C or D to complete the sentences below. Many children in the slums have died from ----------- and disease. A. pick pocketing B. education C. malnutrition D. entertainment 16 Choose the best option A, B, C or D to complete the sentences below. When I drove past in my car, I saw him ----------- along the street. A. walk B. walking C. to walking D. to walk 17 Choose the best option A, B, C or D to complete the sentences below. People put pumpkin ----------- outside the homes during Halloween. A. lights B. neon signs C. lanterns D. bulbs 18 Choose the best option A, B, C or D to complete the sentences below. How ----------- is Anna going to stay in Hue city? – For five days. A. long B. far C. many D. much 19 Choose the best option A, B, C or D to complete the sentences below. A hydropower station ----------- in the North of the country next year. A. were built B. will be building C. will be built D. was built 20 Choose the best option A, B, C or D to complete the sentences below. We should put ----------- on our roof for the heating and hot water. A. solar energy B. equipment C. solar panels D. sun

1 Mark letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. A. biogas B. hydro C. solar D. environment 2 Mark letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. A. diverse B. crime C. famine D. violence 3 Mark letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. A. bulb B. plumber C. label D. profitable 4 Mark letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. A. biogas B. solar C. hover D. metro 5 Mark letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. A. death B. head C. really D. bread 6 Mark letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. A. reverse B. helicopter C. vehicle D. recycle 7 Choose the best option A, B, C or D to complete the sentences below. Alternative sources of energy ----------- developed in the near future. A. is B. has been C. was D. will be 8 Choose the best option A, B, C or D to complete the sentences below. He prefers to go ----------- his car than on the train to avoid gatherings. A. by B. in C. with D. on 9 Choose the best option A, B, C or D to complete the sentences below. Mai’s dad usually drives her to school ----------- her school is very far from her house. A. though B. because C. but D. or 10 Choose the best option A, B, C or D to complete the sentences below. One of the ----------- of living in the town is the lack of safe places for the children to play. A. disadvantages B. advantages C. things D. benefit