A=1+4+4²+4³+...+4²¹ Chứng minh A chia hết cho 5

12/ A. traditional B. combination C. communicate D. rejuvenate 13/ A. African B. energy C. instrument D. musician 14/ A. European B. especially C. emotional D. considerate 15/ A. popular B. powerful C. description D. talented 16/A. human B. solemn C. whether D. contain 17/ A. important B. musical C. wonderful D. telephone 18/ A. beautiful B. example C. cinema D. favorite 19/ A. express B. grammar C. record D. office 20/ A. ballad B. concert C. enough D. contest 21/ A. national B. abandon C. orphanage D. chemical 22/ A. locate B. smallest C. surprise D.depend 23/ A. establish B. visitor C. especial D. expensive 24/ A. contain B. increase C. explain D. faster 25/ A. rainforest B. wilderness C. tropical D.survival 26/A. butterfly B. endanger C. expression D. acceptance 27/ A. mountain B. ethnic C. fauna D. attack 28/ A. during B. flora C. defeat D. province 29/ A. season B. nearly C. mainly D. delight 30/ A. recognize B. enemy C. yesterday D.responding tìm trọng âm mn giúp mình ạ

Viết 4 số có 5 chữ số khác nhau mà số đó vừa chia hết được cho 9 và vừa chia hết cho 5.( giữa 2 số viết dấu ; và 1 dấu cách) ko cần chi tiết

Calli : Huy .... Huy ngủ gầm cầu

tìm một số ví dụ về chất, một số ví dụ về sự biến đổi chât thông qua các hiên tượng mà em quan sát được trong cuộc sống hằng ngày

Simple Present / Simple Past/ Present Continuous? 1. We _______ (go) to the beach last weekend. 2. Listen! Our teacher ________________ (speak). 3. My cousins _______ (not/ visit) us every weekend. 4. Their students ________________ (not try) hard enough in the competition. 5. _________ (your mum/ make) a chocolate yesterday? 6. I _____ (send) Jessica an email yesterday afternoon 7. The children always ____ (do) their homework yesterday afternoon. 8. All of Jack’s friends ________________ (have) fun at the concert right now. 9. Last year, I _________ (travel) to Japan. 10. _________ you _________ (have) dinner last night? 11. He _________ (arrive) from the airport at 8:00, _________ (check) into the hotel at 9:00, and met the others at 10:00. 12. My children ________________ (travel) around Asia now. 13. I _________ (receive) three messages two minutes ago. 14. She _________ (work) at the movie theater after school. 15. What ________________ (you, wait) for? 16. Hurry up, the teacher ________________ to begin (wait). 17. I ________________ a word Tim says (not believe). 18. The new lawnmower ________________ well at the moment (work) 19. What ________________ do for a living? (you, do) 20. As a secretary I ________________ hundreds of letters every week (write).

câu 1: tìm 3 từ đơn và 2 từ láy câu 2: đặt 1 câu có các thành phần chính

a) (2x - 3y) (2x + 3y) b) (1 + 5a) (1 + 5a) c) (2a + 3b) (2a + 3b) Làm giúp mik nhé

Em đang cần gấp ạ. Thanks mọi người

giúp mình vs ạ 1. Nam didn't work hard, so he failed the examination. → If Nam had 2. He left quietly so that he wouldn't disturb the children - So as 3. He didn't know how to cycle until he was 20. It was not until 4. Mary has bought a new car. A new 5. She didn't come home until midnight. It was not until 6. We didn't go to the concert last night because we were busy If 7 I swept the broken glass of the path I wanted to prevent an accident. In order to 8. A French architect designed the bridge The bridge. 9 There are fifteen floors in that building (Make a question for the underlined part) 10. They are building several new schools in our town Several new schools.