II. Tense 8.When we arrived at the restaurant, the others __________ . A. left B. have left C. had left D. are leaving9. By the end of 2010 we_______ in Ho Chi Minh City for 30 years. A. work B. will work C. have worked D. will have worked 10. I learned that the college ________ in 1900 A. found B. was founded C. founded D. had been founded 11. If I ________ 10 years younger, I _________ the job. A. am/ will take B. were/ would take C. would be/ took D. had been / would take 12. By the time he _____________ to the meeting, it had begun for 15 minutes. A. had gone B. has gone C. went D. was going 13. He began to feel ill while ___________________. A. he is doing the exam B. he did the exam C. he would do the exam D. he was doing the exam. 14. Since 1980, scientists the world over _____ a lot of things to fight against AIDS. A. have done B. are doing C. did D. had done 15. Now my sister _____ a bicycle of her own. A. is having B. are having C. has D. had

<div class="content-answer-1 enable-event-click" style="overflow-x:auto;text-justify:inter-word;text-align:justify"><p><strong>II. tense</strong></p><br /><p>8. A left</p><br /><p>=&gt; Qkd+when+qkd</p><br /><p>=&gt; hành động song song trong quá khứ</p><br /><p>9. <span>D. will have worked</span></p><br /><p><span>=&gt; hành động hoàn thành tại một thời điểm trong tương lai chia thì tương lai hoàn thành</span></p><br /><p><span>10. B. was founded </span></p><br /><p><span>=&gt; bị động QKD</span></p><br /><p><span>11. B. were/ would take</span></p><br /><p><span>=&gt; Hành động không có thật ở hiện tại, chỉ sự hối tiếc chia diều kiện loại 2</span></p><br /><p><span>12. D. was going</span></p><br /><p><span>=&gt; Hành động đang xảy ra tại một thời điểm xác định trong quá khứ chia quá khứ tiếp diễn</span></p><br /><p><span>13. D. he was doing the exam.</span></p><br /><p><span>=&gt; Hành động đang xảy ra tại một thời điểm xác định trong quá khứ chia quá khứ tiếp diễn</span></p><br /><p><span>14 A. Have done</span></p><br /><p><span>=&gt; có since chia HTHT</span></p><br /><p><span>15. is having</span></p><br /><p><span>=&gt; có now chia HTTD</span></p><br /><p></p><br /><p></p></div><div class="pt12"><div></div></div>