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3. I have never eaten this kind of food before.
→ This is the first time I have ever eaten this kind of food.

4. Lan has never seen such a beautiful girl before.
→ This is the first time Lan has seen such a beautiful girl.

5. This is the best book she has ever read.
→ She has never read a better book than this.

6. This is the first time Cuong went to China.
→ Cuong has never been to China before.

7. My sister started learning English 2 years ago.
→ My sister has learned English for 2 years.

8. My parents began drinking when it started to rain.
→ My parents have been drinking since it started to rain.

9. My brother last had his car repaired when I left him.
→ The last time my brother had his car repaired was when I left him.

10. When did he have it?
→ The last time he had it repaired was before I left him.

11. I haven't seen my grandmother for 6 months.
→ The last time I saw my grandmother was 6 months ago.

12. Tonny hasn’t taken a bath since Monday.
→ The last time Tonny took a bath was on Monday.