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nếu câu trả lời hữu ích nhé!
II
1 After having been in London for 8 years, Alex finished his study
2 Before receiving his mechanic's license, George had repaired many cars
3 After going to the supermarket, I went home
4 After living in a small village for 20 years, I moved to HN
5 Before going out, I had finished my homework
III
1 had already sold
2 went
3 have been
4 had made
5 had gone
6 had been broken
7 took- had read
8 got- had gone
9 had fill- went
10 remembered-had asked- phoned
11 went-knocked- was- had gone- didn't want
12 has never used
13 didn't know
14 doen't- have already seen- do
15 met- had not seen- writing
IV
1 B went
2 D hadn't entered
3a didn't know- hadn't seen
4 B had come
Hãy giúp mọi người biết câu trả lời này thế nào?
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