Câu 1. Chọn câu trả lời đúng: Với a, b, c mà c > 0, ta có: Nếu a < b thì. A. ab > bc. B. ac < bc C. ac = bc D. ac > bc Câu 2. Chọn câu trả lời đúng: Với a, b, c mà c < 0, ta có: Nếu a > b thì. A. ab > bc. B. ac = bc C. ac < bc. D. ab > ac Câu 3. Chọn câu trả lời đúng: A. (-2019).21 < (-2020).21 B. (-2019).39 < (-2020). 51 \ C. (-2019). ( -36) > 198. (-2020) D. (-2019). ( -2020) < 2021. (-2020) Câu 4. Chọn câu trả lời đúng: Cho -29x > -21x, ta có: A. x > 0 B. x < 0 C. x = 0. D. x lớn hơn hoặc bằng 0 Câu 5. Chọn câu trả lời đúng: Cho tam giác ABC có số đo các góc A, B , C lần lượt là x, y , z (tính bằng độ) thì: A. x + y + z < 1800 B. x + y + z > 1800 C. x + z > 1800 D. x + y < 1800 Câu 6. Chọn câu trả lời đúng: Cho -24a + 113 < -24b + 113 ta chứng tỏ được: A. a > b B. a = b C. a < b D. a nhỏ hơn hoặc bằng b

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I.Khoanh tròn từ có cách phát âm đuôi ed khác với các từ còn lại 1. a. filled               b. missed                 c. ploughed                          d. watched 2. a. visited           b. decided                c. engaged                            d. disappointed 3. a. kissed              b. stopped                   c. laughed                             d. closed 4. a. reformed        b. appointed                c. stayed                               d. installed 5. a. fitted               b. educated                 c. locked                               d. intended 6. a. matched          b. educated                 c. enriched                            d. washed 7. a. attended         b. improved                 c. dedicated                         d. exhibited 8. a. killed             b. developed               c. threatened                        d. endangered 9. a. wanted            b. looked                     c. needed                              d. visited 10. a. planned         b. worked                    c. helped                               d. galloped 11. a. hoped                b. referred                   c. shopped                            d. laughed 12. a. hurried                b. studied                    c. stayed                               d. started 13. a. watched              b. passed                     c. used                                  d. washed 14. a. moved                 b. hoped                      c. married                             d. danced 15 a. retired                 b. escaped                   c. faded                                d. played 16. a. believed            b. asked                       c. allowed                             d. died 17. a. called              b. phoned                    b. showed                             d. finished 18. a. fired               b. traveled                   c. enjoyed                             d. decided 19. a. apologized     b. explored                  c. rained                               d. wondered 20. a. spilled               b. opened                    c. finished                            d. climbed 21. a. failed                 b. believed                   c. stopped                             d. solved 22. a. liked                    b. laughed                   c. earned                               d. missed 23. a. admitted      b. deleted                    c. controlled                         d. intended 24. a. jumped             b. robbed                     c. closed                               d. enjoyed 25 a. amassed           b. raided                      c. invented                           d. collected 26. a. experimented      b. collected                  c. needed                              d. raised 27 a. selected           b. obtained                  c. afforded                           d. collected 28. a. added                  b. subtracted               c. hooked                             d. visited 29. a. mixed                  b. raised                       c. delayed                             d. closed 30 a. supposed             b. collected                  c. admired                            d. posed