1. This is the first time she has eaten such a delicious food.

2. I have never seen such a beautiful garden before.

3. That is the first time they have watched an attractive football match.

4. They are the most intelligent students I have ever taught.

5. They are the biggest hats we have ever got.

6. This is the first time he has got such good mark.

7. This is the first time Lan has swum across such a large river.

8. Thang has never seen such modern cars before.

9. I have never known such talkative students before.

10. I have never seen such a long bridge before.

11. She is the most beautiful girl I have ever met.

II.

1. She hasn't met him since she came to HN.

2. I haven't eaten fish since I lived in my grandomther.

3. They haven't worked together since he was obdained.

4. We haven't met since farewell party was held.

5. She hasn't worn that skirt since she left the company.

1.This is the first time she has eaten such a delicious food.

2.I have never seen the most beautiful garden before.