Biết các cạnh tỉ lệ với 2:3:4 và chu vi của nó là 45cm .Tính các cạnh của tam giác đó

1. The window was broken while the boys ________________ football. play were playing are playing played 2. If you don’t eat anything, you will be ill. ( Rewrite) Unless..................................................................................... you don’t eat anything, you will be ill you eat anything, you will be ill. you eat something, you will be ill. you eat something, you won’t be ill. 3. It rained heavily. We didn’t have a picnic. ( Rewrite) ..................................................................................................... If it rained heavily, we didn’t have a picnic. If it didn’t rain heavily, we would have a picnic. If it hadn’t rained heavily, we would have a picnic. If it hadn’t rained heavily, we would have had a picnic. 4. My sister has cleaned my shoes. ( Rewrite) ................................................................................................... My shoes has been cleaned by my sister. My shoes have been cleaned by my sister. My shoes have been clean by my sister My shoes have be cleaned by my sister. 5. You should __________ to class on time. going went go to go 6. We cannot clean up our ...........................rivers and seas overnight. polluted polluting pollute pollution 7. Without plants, most water would run ...................as soon as it falls up off down about 8. Why don’t you ...................us in this trip? to join joining join joined 9. How about ....................to the cinema tonight? go going gone to go 10. Cuc Phuong National Park is ....................160 kilometres south west of Ha Noi located locate locates locating 11. Visitors go to Nairobi to learn how one species is dependent upon another .................survival. to at for on 12. I’m sure Sue ........................if you explained the situation to her understand will understand would understand would have understood 13. Liz gave me this ring. She would be very upset if I ....................it. lost lose will lose would lose 14. If I sold my car, I .......................much money for it wouldn’t get wouldn’t have got won’t get didn’t get 15. We ......................the party better if it had not been so long. would enjoy will enjoy had enjoy would have enjoyed 16. If you had listened to me, you ...................it now. wouldn’t regret would regret would not have regretted would have regretted 17. This room .....................for the classroom. can use can used can be used can using 18. .....................to your party? will she invite she will invite she will be invited Will she be invited 19. I am not a millionaire, so I can’t help you.( Rewrite) If I am a millionaire, I can help you. If I were a millionaire, I can help you. If I were a millionaire, I couldn’t help you. If I were a millionaire, I could help you. 20. Because Hoa was sick, she couldn’t come to your party. If Hoa had been sick, she could have come to your party. If Hoa hadn’t been sick, she couldn’t have come to your party. If Hoa wasn’t sick, she could have come to your party. If Hoa hadn’t been sick, she could have come to your party Giúp mình với mình đang cần gấp

Đọc kĩ bài ca dao sau và thực hiện các yêu cầu sau : Mình về đường ấy bao xa? Cậy mình làm mối cho ta một người Một người mười mấy đôi mươi Một người vừa đẹp vừa tươi như mình. a) Chỉ ra những dấu hiệu của ngôn ngữ sinh hoạt trong lời ca của bài ca dao. b) Bài ca giúp em hình dung những gì về các nhân vật giao tiếp, mục đích và hoàn cảnh giao tiếp. c) Tìm thêm một số bài ca dao có hình thức đối đáp mô phỏng phong cách ngôn ngữ sinh hoạt

$\left \{ {{x+y=10} \atop {x.y=9}} \right.$ Giải bằng hệ thức viet, nhanh nào

Mọi người giúp mình vs, mình đang cần gấp. Câu 5: Cho tam giác ABC có c=10, A=45 độ và B=60 độ. Tính độ dài cạnh a, b,số đo góc C và bán kính đường tròn ngoại tiếp tam giác đó. Câu 6: Cho hình bình hành ABCD có AB=12, BC=8, ABC=130 độ. Tính độ dài các đoạn AC, BD. (Làm tròn đến hàng phần chục).

Em hãy nhận xét sự phân bố các loại khí áp trên Trái Đất và giải thích vì sao có sự phân bố đó

Nêu đặc điểm về chiều dòng điện cảm ứng sinh ra trong hiện tượng tự cảm ? Giúp mình với !

Question 1: There are seven ____________ in the world. A. continents B. palaces C. creatures D. landmarks Question 2: London is one of the most interesting city I ____________. A. ever visit B. have ever visited C. ever visited D. will ever visit Question 3: He sent me a ____________ of world’s heritages. A. postcard B. tower C. symbol D. design Question 4: I have never seen such a strange ____________. It has green color and big eyes. A. palace B. continent C. creature D. time Question 5: Vietnam is located in South East ____________. A. Africa B. America C. Asia D. Antarctica

giải hộ em ạ em cảm on mọi người a

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