----- Nội dung dịch tự động từ ảnh ----- V. Decide the underlined word or phrase (mark A,B,C or D) in each sentence that needs correcting 56. When too many firms enter competitive markets, their share of profits will fell C 57. The term "middle class" describes people between the upper and the low social classes. A B C D A 58. Copper comes from seven types of ores that also contain the other materials. A B C D 59. Matthew Henson received many honor for his part in the expedition to the North Pole B C D 60. Silicon chips contain thousands of circuits in an area as smaller than a fingernail. of the murder. D 61. The waters of the Black Sea conceal numerous archaeologist treasures. B A A A B D A them happening. A 62. Two human hairs found at the scene of the crime led the detectives to the eventual arrest A C B B B 63. There is no definite record of who created and first use traffic control devices. B C D C 64. Fortunetellers say they possess a certain power that makes them aware of events before C B D C 65. Developing new technologies are time-consuming and expensive. A C D D D