1.

- have watched

- have travelled

- have read

- read

2.

- The last time I have had my hair cut when I left her.

- He has begun to study English since he was young.

- This is the first time I have eaten this kind of food.

- She is the most beautiful girl that I have ever met.

- I haven't read any novel better than this before.

1 ) CHia động từ trong ngoặc :
- We ( watch ) ....have watched..... that television program .
-My wife and I ...have travelled... (travel ) by air many times in the past .
- My wife and I ........traveled.... (travel) to Mexico by air last summer .
-I (read ) ...have read.... that novel by Hemingway serval times before .

-I (read ) .... read...... that novel again during my last vacation .
2)Viết lại câu sao cho nghĩa của chúng không thay đổi :
-I last had my hair cut when I left her .
.........The last time I have had my hair cut when I left her.....

He began to study English when he was young .(since )
......He has begun to study English since he was young...........
-I have never eaten this kind of food before . (This is )
.....This is the first time I have eaten this kind of food......
-I have never seen such a beautiful girl before .(She is )
........She is the most beautiful girl that I have ever met.........

-This is the best novel I have ever read . (before)
........I haven't read any novel better than this before...............