IV/ Read the passage. Then choose the best options. The principle of first-aid is immediate action, but it is (46) that quick action does not cause panic. Any action taken needs to ...(47)...and the first-aider must remain calm at all times. It is equally important to (48)...the situation quickly, to appreciate the limitations of your own actions and to seek expert assistance. s.g (49) for ambulance, fire brigade, or police as soon as possible. The first priority is to yourself and to others-protect the scene after understanding risk, and... (50) before you act nanic (a): hoảng loạn, sợ hải Pemain (N): vẫn còn fire brigade (n); đòi cửu hòa xeck expen assistance - tìm nhân viên có chuyên môn, thành thự 46. A. important 47. A. carefully 48. A. pleased B. need C. difficult D. interested D. careful D. see B. be careful B. know C. care C. understand 49. A. called 50. A. think B. to call B. play C. call C. tell D. calling D. do