Mình trình bày trong hình nhé ^^

2. came - had been - had gone

3. Have (your brother) been

4. has written

5. has never climb

6. sang

7. I have spoken

8. were

9. didn't work

10. has tidied

VI.

1. exciting

2. buildings

3. activities

4. noisiest

5. unhappy

VII

1. Did --> Have

2. weter --> wetter

3. eats --> has eaten

4. more --> most

5. hasn't --> bỏ đi

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1. most crowded city in Vietnam

2. never talked to a foreigner before.

3. seen Peter for five months.

4. It's the first time I have ever tasted fish and chips.

5. is more expensive than living in the country.