Viết chương trình thực hiện tính tổng dãy số S= 11+13+15+...+101 ( sử dụng lệnh lặp với số lần chưa biết trước)
Cho 10 hộp bi có 9 hộp có khối lượng của từng viên trong hộp bằng m đã biết. Hộp còn lại thì khối lượng của từng viên bằng m - 10g. Cho một cân Rô bec van và một hộp quả cân đầy đủ. Sau một lần cân làm thế nào để xác định được hộp có khối lượng ít hơn?
Kính mong các Thầy, Cô và các bạn giúp em ạ! Em cảm ơn!
Mark the letter A, B, C or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
5. The information I got from the assistant was such confusing that I didn’t know what to do.
A B C D
6. I enjoy reading the editorial that you told me about it yesterday.
A B C D
7. Jeans cloth made completely from cotton in the eighteenth century.
A B C D
Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions.
8. You______many good choices for the future if you are admitted to a famous university.
A. will have B. had C. would have D. would have had
9. I wish Ann ______ here.She will be able to help us.
A. were B. weren't C. is D. wasn't
10. My brother ______for this company since he left school.
A. works B. has worked C. have worked D. worked
11. I came ______ an old friend while I was walking along the street.
A. across B. into C. over D. for
12. Sarah has to stay in bed for a few days _________ she is sick.
A. because B. and C. but D. although
13. Relax for some minutes and you'll feel more ______
A. comfort B. uncomfortable C. comfortable D. comfortably
14. ___________all over the world, English has become the international language.
A. Speaking B. Spoken C. Speak D. To speak
15. After two hours travelling by bus, they _________ a quiet town by the beach.
A. arrived B. got C. went D. reached
16. If you want to lose weight , you______go on a strict diet.
A. can B. should C. could D. may
17. Living in a far-away town I can’t get______to the Net easily.
A. access B. work C. connect D. relation
18. There are a lot of people here, ______?
A. are they B. are there C. aren’t there D. aren’t they
Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.
19. Lora has just bought a new skirt that she likes very much.
- Jane:“You look great in that red skirt, Lora!” - Lora:“_______”
A. No, I don't think so. B. Oh, you don't like it, do you?
C. Thanks, I bought it at Macy’s. D. Thanks. I’m afraid so.
20. Anna: “Don’t fail to send your parents my regards.”
A. You’re welcome. B. Thanks, I will.
C. Good ideas, thanks D. It’s my pleasure