Hãy nêu các tính chất của phép cộng số tự nhiên.

Tính một cách hợp lí: a) $\dfrac{-5}9+\dfrac4{11}+\dfrac7{11}$ b) $\dfrac{-2}{5}+\dfrac38+\dfrac{-3}5+\dfrac{13}8$

Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) CLOSEST in meaning to the underlined bold word(s) in each of the following questions. 19. Question 19. To absorb a younger workforce, many companies offered retirement plans as incentives for older workers to retire and make way for the young ones who earned lower salary. A. rewards B. opportunities C. motives D. encouragements 20. Question 20. How on earth could they do away with a lovely old building like that and put a car park there instead? A. keep B. destroy C. decrease D. upgrade Câu 21 - 22 Mark the letter A, B, C, or D on your answer sheet to indicate the word(s) OPPOSITE in meaning to the underlined word(s) in each of the following questions. 21. Question 21. The first year at university was probably the most challenging year of her life, which caused her plenty of troubles. A. tricky B. tough C. difficult D. easy 22. Question 22. I don’t know what they are going to ask in the job interview. I’ll just play it by ear. A. plan well in advance B. be careful about it C. listen to others saying D. do not plan beforehand Câu 23 - 24 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. 23. Question 23. Tom is apologizing to Peter for being late. - Tom: “Sorry, I’m late, Peter. My car has broken down on the way here.” - Peter: “___________________” A. No, I wouldn’t mind at all. B. Not on my account. C. That’s all right. D. Well, it’s worth a try. 24. Question 24. Two friends, Peter and Linda, are talking about pets. - Peter: “Well, cats are very good at catching mice around the house” - Linda: “___________________” A. Nothing more to say. B. You can say that again. C. Yes, I hope so. D. No, dogs are good, too.

Tính: a) $\dfrac{-3}7+\dfrac27$ b) $\dfrac{-4}7+\dfrac2{-3}$

phân tích đặc điểm khí hậu biển đông. Đặc điểmnày thuận lợi đến sinh hoạt và sản xuất của người dân ven biển như thế nào

Điểm giống nhau cơ bản giữa trung tâm công nghiệp và vùng công nghiệp là

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. 5. Question 5. We all felt cold, wet and hungry; _________________, we were lost. A. moreover B. although C. however D. so that 6. Question 6. ____________ one of the most beautiful forms of performance art, ballet is a combination of dance and mime performed to music A. Being considering B. Considering C. Considered D. To consider 7. Question 7. I am writing to apply for the ______ of interpreter, which was advertised on T.V last night. A. position B. work C. task D. role 8. Question 8. Your responsibilities ______ managing a team of 4 people, and setting up meetings with clients. A. consider B. have C. involve D. engage 9. Question 9. We planned everything carefully, but unfortunately the holiday didn’t meet our ______. A. suspicions B. calculations C. hopes D. expectations 10. Question 10. She ______ with her brother when he broke her favorite toy. A. got out B. fell in C. got on D. fell out 11. Question 11. Before you sign the contract, ______ in mind that you won’t be able to change anything later. A. bear B. hold C. retain D. reserve 12. Question 12. She doesn’t say very much. It is very difficult to ______ a conversation with her. A. do B. take C. make D. talk 13. Question 13. It is said the Robinhood robbed______ rich and gave the money to ______ poor. A. a/ a B. a/ the C. the/ the D. the/ a 14. Question 14. The presenter started his speech with a few ______ jokes to build rapport with the audience. A. whole-hearted B. light-hearted C. soft-hearted D. kind-hearted 15. Question 15. My purse _______ at the station while I _______for the train. A. must have been stolen/was waiting B. should have stolen/had been waiting C. will be stolen/am waiting D. had to steal/would be waiting 16. Question 16. The curriculum at this public school is as good _______of any private school. A. as or better that B. as or better than that C. as or better than those D. better than 17. Question 17. He'd hardly finished doing his homework when you arrived, ______? A. didn't he B. had he C. would he D. hadn’t he 18. Question 18. My mother often ______our mistakes, whereas my father is very strict and punishes us for even the slightest one. A. appreciates B. overlooks C. avoids D. enjoys

Thái Bình Dương bao phủ khoảng $\dfrac13$ bề mặt Trái Đất, Đại Tây Dương bao phủ khoảng $\dfrac15$ bề mặt Trái Đất. Thái Bình Dương và Đại Tây Dương bao phủ khoảng bao nhiêu phần bề mặt Trái Đất? Thái Bình Dương bao phủ nhiều hơn Đại Tây Dương bao nhiêu phần bề mặt Trái Đất?

1. Quan sát hình 2 kết hợp với các kiến thức đã học, em hãy hoàn thành bảng sau vào vở:

Chọn số thích hợp cho ô ? a) $\dfrac{-11}{15}<\dfrac{?}{15}<\dfrac{?}{15}<\dfrac{-8}{15}$ b) $\dfrac{-1}{3}<\dfrac{?}{36}<\dfrac{?}{18}<\dfrac{-1}4$ c) $\dfrac{4}{-12}>\dfrac{?}{-12}>\dfrac{?}{-12}>\dfrac7{-12}$ d) $\dfrac{-1}{-3}>\dfrac{-1}{?}>\dfrac{-1}?>\dfrac17$