80. It ______ a long time since I last saw him. A. was B. is C. will be D. had been 81. Mr. John_______ to Los Angeles in 1992. A. was going B. had gone C. went D. has gone 82. What ______ to you yesterday? A. had happened B. has happened C. did happen D. happened 83. I never go to Australia. I _____ to Australia yet. A. will go B. went C. haven't been D. have been 84. My mother ______ in this factory since 1990 A. works B. worked C. had worked D. has worked 85. I _____ my hair before breakfast this morning. A. had washed B. have washed C. was washing D. washed 86. I _____ about him when he suddenly came in. A. am talking B. talked C. was talking D. talk 87. He will finish this work before you _______ here tomorrow. A. would leave B. are going to leave C. will leave D. leave 88. He _____ in this office for ten years by next Monday. A. will be working B. would be working C. will work D. will have been working 89. No sooner _____ the office than the telephone rang. A. was he leaving B. he was leaving C. had he left D. he had left 90. George______ this movie three times. A. sees B. had seen C. saw D. has seen 91. Food, air and clothes _______ necessary for life. A. is B. are C. were D. was 92. He ______ a visit to Halong Bay in 1995. A. has paid B. had paid C. paid D. pays 93. This morning while I ______ for the bus, the rain stopped. A. had waited B. was waiting C. have waited D. waited 94. What _____ during the last few weeks. A. were you doing B. did you do C. have you been doing D. had you been doing 95. Up to now, the teacher _______ our class five tests. A. has given B. had given C. gives D. is giving Giúp vs ạ