72. Phong ______ at the university so far. A. has worked B. worked C. had worked D. was working 73. How long _____ able to drive? => Since 1990. A. were you B. could you C. have you been D. are you 74. They ______ since eight o'clock. A. are talking B. have been talking C. talk D. talked 75. My brother _______ in the army from 1990 to 1995. A. has served B. had served C. is serving D. served 76. At this moment, I _____ that we have a good chance of victory. A. feel B. was feeling C. had been feeling D. am feeling 77. I _____ the money from him yet. A. will receive B. don't receive C. am receiving D. haven't received 78. This is the most interesting book _____ . A. I've ever read B. I had read C. I've never read D. I've read 79. I ____ him ten days ago. A. will see B. have seen C. saw D. see Giúp vs ạ