1. They began working in the factory five years ago. (worked) ______________________________________________________________

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1. 1. They began working in the factory five years ago. (worked)

   => They have worked in that factory for five years

   2. This is the first time I have visited London, (never)

   =>I have never visited London before

   3. She last heard about her best friend when she met his mother, (hasnt)

   =>She hasn’t heard about her best friend since she met his mother 

   4. The last time I had a frill English breakfast was two years ago. (for)

   =>I haven’t had a full English breakfast for two years.

   5. They have raised the environmental campaign for several months. (Its)

    =>It’s several months since they started raising the environment camping

   6. The students had submitted their papers by the time the bell rang, (before)

   =>The students had submitted their papers before the bell rang

   7. Lucy had watched three movies before her friends arrived, (after) ______________________________________________________________________________________

   8. The light had gone out before we got out of the office, (when)

   =>When we got out of the office, the light had gone out.

   9. Before the manager explained everything clearly, everybody had left the office, (by the time)

   =>the manager explained everything clearly by the time everybody had left the office

   10. My sister had prepared a big dinner by the time we came home, (before)

   =>before my sister had prepared a big dinner, we came home

   +) S + have/ has + not + VpII 

   +)Have/ Has + S + VpII +… ?

   +)WH-word + have/ has + S (+ not) + VpII +…?

   1 câu mik chưa lm dc nha ^^

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