Câu 9; Trong những ngày cách ly xã hội, siêu thị ABC bán được một nửa số túi gạo và thêm 4 túi trong ngày đầu tiên của tuần. Siêu thị tiếp tục bán được thiếu 3 túi thì hết một nửa số túi gạo còn lại vào ngày thứ hai. Siêu thị nhập thêm về 30 túi gạo nữa vào ngày thứ ba. Tổng cộng siêu thị có trong kho 50 túi gạo. Hỏi ban đầu siêu thị ABC có bao nhiêu túi gạo? * 2 Người ta sử dụng các hình lập phương nhỏ cạnh 1cm để xếp thành hình lập phương lớn cạnh 12cm. Sau đó sơn 6 mặt của hình lập phương lớn. Hỏi có bao nhiêu hình lập phương nhỏ được sơn 2 mặt? chỉ càn ghi đáp án

Xin mọi người giúp mình với mình đang cần gấp

1. I…….a lot when I was younger. a. use to swim b. used to swim c. used to swimming d. didn’t used to swim 2. People…… so often, or they just didn’t travel at all. a. used to travel b. used not to travel c. didn’t used to travel d. didn’t use to travel. 3. My brother……….in this office since he ……… 20. a.works/is b. used to work/was c. worked/was d. has worked/was 4. Find the word which has the different sound in the underlined part. a. break b. bread c. instead d. health(ea) 5. You should walk across the street……the zebra crossing. a. on b. at c. in d. from 6. Find the word which has the different sound in the underlined part. a. lane b. stay c.wait d. traffic(a) 7. Turn on the left turn…..before you make the turn and slow down. a.sign b. direction c. signal d. crossing 8. Choose the word that has the ending pronounced differently. a. matched b. dressed c. starred d. decreased 9. ……..does it take you to ride to school? – About 30 minutes a. How long b. How far c. How often d. How much 10. Choose the word that has the ending pronounced differently. a. moved b. gripped c. remembered d. encouraged(ed) 11. I………… in Jakarta. I've lived here all my life. a. am used to living b. used to living c. used to live d. am used to live 12. This work doesn’t bother me. I ………… hard. I've worked hard all my life. a. used to working b. used to work c. am used to working d. am used to work Choose and write the word which best fits each gap. Staying safe on foot and bike Look out for yourself and your friends when out (13)…….foot and bike. Choose the (14)……routes you can, like quieter, slower roads, with pavements if you ‘re walking or (15)…..if you’re going by bike. It’s easy to get distracted by your phone or by friends, but you need to be (16)….to traffic. Put your phone away and take your earphones (17)…..when crossing the road. Don’t trust that drivers (18)…..spot you and be able to stop in time – many drivers go too fast and don’t (19)…..enough attention, (20)…..anything you can do to protect yourself is a good thing. 13. on in by with of 14. safe safer safest safely safely 15. zebra crossings cycle paths footpaths bumpy roads paths 16. risky warning serious obey alert 17. off over with out down 18. must may will could should 19. pay make turn take have 20. but so though because and Lm giúp mk trong 5 phút nha mk cân gấp

Tìm điều kiện của m và n để biểu thức (m-3)x+(2-n)y=1 là phương trình bật nhất 2 ẩn

Tính nhanh các tổng sau: a) ( 3567 – 214) – 3567; b) ( - 2017) – ( 28 – 2017); c) -( 269 – 357 ) + ( 269 – 357 ); d) ( 123 + 345) + (456 – 123) – [2017-(-345)] Trả lời = Tim+5sao nhé :3

1 tia sáng đi từ môi trường trong suốt có chiết suất n đến mặt phân cách giua 2 môi trường đó với không khí với góc tới 30 độ.Khi đó tia khúc xạ hợp với mặt phân cách góc 45 độ a)Tính n b)Nếu góc tới là 60 độ thì góc khúc xạ là bao nhiêu

Hình ảnh con thuyền trong bài thơ quê hương giúp em gợi tả đến ai? Từ đó em có cảm nhận j về họ

1 / 2 Exercise 4: Choose the best answer to complete these following sentences. 1. If you don’t feel well, you_____________ better take a rest. A. are B. would C. had D. have 2. What would you have done if you _____________ a lot of money? A. had B. had had C. have had D. have 3. The movie was sad and she wept. If it_____________ sad, she_____________. A. hadn’t been/ wouldn’t have wept B. wasn’t/ wouldn’t weep C. wasn’t/ would weep D. had been/ would have wept 4. I’ll be very disappointed if you _____________ the exam. A. don’t pass B. won’t pass C. aren’t passing D. wouldn’t pass 5. If he _____________ harder, the results would be better. A. has worked B. works C. will work D. worked 6. If I had had free time, I _____________ shopping. A. would have gone B. can go C. will go D. will have gone 7. _____________ if you take the map with you. A. You will get lost B. You won’t get lost C. You get lost D. You got lost 8. If you had come to the party, you _____________ her. A. would meet B. had met C. would have met D. met 9. I’m not tired enough to go to bed yet. I wouldn’t sleep if I _____________ to bed now. A. go B. went C. had gone D. would go 10. If I were you, I _____________ that shirt. It’s much too expensive. A. won’t buy B. don’t buy C. am not going to buy D. wouldn’t buy 11. I decided to stay at home last night. I would have gone out if I _____________ so tired . A. wasn’t B. weren’t C. wouldn’t have been D. hadn’t been 12. "Did he lose?" "Yes, but if he had tried harder, he_____________ won." A. might B. might have C. might of D. might has 13. What will I do if no one _____________ me at the airport? A. meet B. will meet C. meets D. met 14. Jean gets very agitated if her daughter _____________ her once a week. A. doesn't ring B. didn't ring C. not ring D. don't ring 15. ______________________________. A. People will die if there is no water and air. B. If there were no water and air, people would die. C. People will not die if there is no water and air. D. If there were no water and air, people would not die. 16. If you_____________ that plane, you _____________ dead now. A. had caught / would have been B. caught / would be C. had caught / would be D. catch / will be 17. I would have said "good bye" to your brother if he_____________ there. A. could be B. had been C. will be D. will have been 18. If you_____________ what Nam is doing, you _____________ very surprised . A. had known / would be B. knew / would be C. knew / would have been D. knew / will be 19. I _____________ very happy if there _____________ a good film on channel 9 last night. A. would be / had been B. would have been / would be C. would have been / had been D. had been / had been 20. If you see Tom, _____________ you mind _____________ him to get in touch with me? A. will / reminding B. will / to remind C. would / reminding D. would / to remind

Sử dụng Ămpe kế xoay chiều để đo cường độ dòng điện chạy trong quạt điện ở lớp học thấy Ămpe kế chỉ giá trị 1.0A. Nếu đổi chỗ 2 đầu phích cắm vào 2 đầu dây của quạt thì kim Ămpe kế chỉ giá trị: A. Số 0 B. Số - 1.0A. C. Số 1.0A D. Không xác định mà dao động.

Một lớp học có chiều dài 9m, chiều rộng 7m và chiều cao 3,5m. Hỏi lớp học đó chưa được bao nhiêu mét khối không khí ?