----- Nội dung dịch tự động từ ảnh ----- 52. The explorers made a fire to ______ off wild animals. A. get B. keep C. take D. go 53. If something urgent has ______ up, phone immediately and I will help you. A. picked B. come C. kept D. brought 54. The passengers had to wait because the plane ______ off one hour late. A. took B. turned C. cut D. made 55. Be careful! The tree is going to fall. A. look out B. look up C. look on D. look after 56. The organization was established in 1950 in the USA. A. come around B. set up C. made out D. put on 57. Within their home country, National Red Cross and Red Crescent societies ______ the duties and responsibilities of a national relief society. A. take on B. get off C. go about D. put in 58. The bomb ______ in the garage; fortunately no one hurt. A. put on B. went off C. go out D. kept up 59. They had to ______ their trip because of the bad weather. A. get through B. put off C. keep up with D. go over 60. She tried to overcome from the shock of her death.