A burn is an (56)_______ to the skin caused by exposure to fire, hot liquids or metals,chemicals, (57)_______ or the sun’s ultraviolet rays. When someone (58)_______ a burn,it’s necessary (59)_______ first-aid right away. First aid for burns involves (60)_______ thesource of the burn as soon as (61)_______. The burns should be cooled immediately withcold water. A clean, cold wet towel or dressing can be placed on less serious burns to easepain and protect the burns (62)_______ contamination. If the burn is caused by chemicals, itshould be bathed continuously with running water for at least 20 minutes to reduce thesubstance. Any powder should be (63)_______ brushed off with gloved or protected handsbefore washing. Wet dressings should never be used for burns. (64)_______, the first-aidprovider should gently apply dry, sterile dressing held in place by bandages and seekimmediate (65)_______ attention.

56. A. injured   B. injuring   C. injuries   D. injury

57. A. electricity   B. electricians   C. electric   D. electrical

58.  A. takes    B. goes   C. gets   D. blows

59. A. to provide    B. providing    C. to provided   D. provided

60.  A. applying    B. removing   C. removes   D. applies

61. A. more    B. less   C. possible   D. better

62. A. in    B. on   C. from   D. up
làm và gthich tại sao
 

63. A. careful   B. careless   C. carelessly   D. carefully 

64. A. Moreover    B. However    C. Instead   D. As a result

65. A. medical   B. medically   C. medician   D. medicians