My brother is one of the most effective _______ in my town. * action activity activists activist There are many ways for us to reduce energy ____________ at home. * consume consumption consumer consuming

Khái niệm về chọn giống vât nuôi, ko mạng nha

Giúp mik giải vs ak!!! Cảm ơn!❤️

Sue: "You have read that article on the website, haven't you?" – Peter : "______" * Sure, thanks. Yes, of course, I will. Not at all! Go ahead. Not yet. Why? We think that Mother’s Day should be celebrated ____________. * national nationality nation nationwide I suggest that Mr. Brown______________ the electric fan as soon as possible. * will repair repair repaired repairs The little girl asked what ________________ to her friend. * had happened has happened have been happening would have been happened The teacher suggests _____ something for the poor in our area. * we should do us to do we are doing we will do Rachel _____ if she _____ her driving test. * will please / passes please/ will pass will be pleased / passes is pleased/ passes You should replace ordinary bulbs with _____ bulbs. * energy - saved energy - save saving - energy energy – saving He _____________ a letter from her yet. * hasn’t received didn’t receive don’t receive won’t receive

Câu 2. Hãy viết một đoạn văn trình bày suy nghĩ của em về học sinh hiện nay tự chế tạo pháo nổ. giải giúp mik với đag cần gấp

Xin cac ban giup mik voi, mik can gap!

Theo em cần phải làm gì để tiết kiệm điện năng khi sử dụng đèn huỳnh quang ?

21.They ……… since last week A. didn’t smoke B. weren’t smoke C. haven’t smoked D. hasn’t smoked 22.This baby ………care of by my grandmother for nearly a month. A. has taken B. has been taken C. is taken D.was taken 23.Hong Son …… for the national team in 99 matches so far. A. has played B. is playing C. played D.was playing 24.My parents always …….. me proper encouragement. A. Give B.gives C. gave D. are giving 25.I ……. tennis with my girl friend every Wednesday A. Play B.plays C.played D.am playing 26. Every morning, the sun …….. in my bed room window. A. Shine B.shines C.was shining D.is shining 27.Nga’s brother is good at………. household appliances. A. Repair B.repairs C.repairing D.repaired 28.We were delighted ……… your letter yesterday. A. Got B.get C. getting D.to get 29. Nam usually takes a shower after ……..volleyball. A. Play B. plays C.playing D.played 30. I’m tired of ……… one lesson over and over A. Learning B.learn C.learned D.to learn 31.What …… Hoa’s elder brother sometimes …….. on Sunday morning ? A. is / doing B.are / doing C.do / do D.does / do 32.Mrs Quyen’s students…… often ……. in class. A. don’t / talk B, aren’t / talking C. doesn’t / talk D.isn’t / talking 33. Her mother wants her ……… too much candy. A. doesn’t eat B.don’t eat C.not eat D.not to eat 34.Water …….of hydrogen and oxygen. A. Consists B. consist C. is consisted D. is consisting 35.…… Da Lat …… by thousands of tourists every year ? A. Is / visiting B. Is / visited C.Does / visit D.Has / visited 36. I …….an interesting novel at the moment. A. have read B.am reading C.was reading D.read 37. He …….. a letter to his pen pal now. A. Writes B.wrote C.is writing D.was writing 38. …. Hung …… for the bus at present? A. Does / wait B. Did / wait C. Is / waiting D. Was / waiting 39. Do you think it …….. tonight ? A. Snows B. snow C. will snow D. is snowing 40. Xuan is in Hue at the moment . She ……. at Hoa Hong Hotel .She usually …… there when she is in Hue. A. stays / stays B.is staying / stays C. was staying / stayed D. stayed / stayed

Bài 1: Cho hpt với tham số m mx-y=2m x-my=1+m a) Tìm m để hpt có nghiệm duy nhất b) Tìm m để hpt có nghiệm nguyên Bài 2 Cho tam giác ABC đều nội tiếp trong đường tròn (O,R) a) Tính cạnh của tam giác ABC và DIỆN TÍCH ABC theo R b) Điểm M chạy trên cung nhỏ BC (M khác B, M khác C ) .Dây AM cắt day BC tại D . CMR AM=BM+CM

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