Cho ABC có AB=5cm , BC = 13cm , CA=12cm ngoại tiếp đường tròn( I, r ) , nội tiếp đường tròn( O, R ) .Vẽ tạiID vuông góc BC tại D . Tính BD , R , r.

Write a number in the brackets to put these words in the correct order. Then write the sentence below. A. name’s (_2_) Sara (_3_) My (_1_) and (_4_) fifteen (_6_) I’m (_5_) My name’s Sara and I’m fifteen B.school (__) are (__) subjects (__) Maths and ICT (__) I like (__) and (__) my favourite (__) …………………………………………………………………………………………………. C.when I (__) want to (__) I (__) school (__) computers (__) leave (__) work with (__) …………………………………………………………………………………………………. D.What (__) you (__) ? (__) subjects (__) do (__) like (__) at school (__) …………………………………………………………………………………………………. E.hockey (__) play (__) the (__) At (__) I sometimes (__) weekend (__) …………………………………………………………………………………………………. F.and (__) Write soon (__) yourself (__) me (__) tell (__) about (__)

II. Choose the best option A, B, C or D to complete the folowing sentences 5. People usually use compost to ......................... their fields. A. fertilize B. melt C. recycle D. reduce 6. New York is famous for its .......................... A. Statue of Liberty B. Big Ben Clock C. Opera House D. Golden Gate Bridge 7. Phong enjoys.........................flowers. A. plant B. to plant C. planting D. planted 8. I always keep the doors open ......................... let fresh air in. A. in order to B. so that C. so to as D. because 9. I don't know how.........................the game. A. playing B. play C. to playing D. to play 10. Nam asked Minh if he ......................... the Golden Gate Bridge. A. know B. knows C. knew D. knowing 11. My teacher ......................... English since 1997. A. teach B. has taught C. taught D. teaches 12. It's difficult ......................... all these things . A. remembered B. remember C. to remember D. remembering 13. The United States has a big .........................industry. A. car- make B.make –car C.making-car D. car- making 14. Do you mind if I ......................... you a question? A. ask B. asking C. to ask D. asked 15.My school will be ........................._ next year . A. building B. to build C. built D. builded 16. The Le family ......................... when the mailman came. A. slept B. was sleeping C. were sleeping D. has slept

Complete the second sentence so that it has a similar meaning to the first one using the word in brackets. Do not change the given words in any ways 37. You may get hungry on the train, so take some sandwiches. (IN CASE) ……………………………………………………………………………………… 38. My husband didn’t leave the car keys, so I couldn’t pick him up at the station. (IF) ……………………………………………………………………………………… 39. “I don’t think John will come”, said Bill. (DOUBTED) ……………………………………………………………………………………… 40. The postman was bitten by our dog. (BIT) ………………………………………………………………………………………

Viết lại câu sao cho nghĩa không đổi: The painters painted our house last month (had)

Giúp em làm với ạ em không biết làm

Mọi người làm hộ mình câu 5,6,7,8nhé

Em có nhận xét gì về sơ đồ bộ máy cai trị của nhà Hán đối với nước ta ,sau khởi nghĩa HBT ?(Điễm khác vs trước khi khởi nghĩa HBT là gì ? Tại sao có sự khác biệt đó

Nobody could hear her ... She spoke too quietly

Thực hiện thí nghiệm: Cho 200g dung dịch NaOH nồng độ 4% vào 250g dung dịch NaOH nồng độ 8%. Hỏi sau thí nghiệm thu được dung dịch NaOH có nồng độ bao nhiêu % ?