cứu tớ với được ko ạ :< 1. I started learning English 10 years ago. => I have 2.The last time Mary met her aunt was when she was 8 years old. => She haven't 3. I last went to Ho Chi Minh City 2 years ago. =>I haven't 4.She began studying ballet when she was five. => She have 5.I started reading the book last night. => I have 6.He last sent me postcards when he was in France. => He haven't 7.She began writing the report 45 minutes ago. => She have 8.He has taught the children in S.O.S village for 2 years. => He began 9. I last ate eel soup when I was in Vietnam. => I havent 10.He bought the car two weeks ago. => He has

`1.` I have learnt English for `10` years.

`2.` She hasn't met her aunt since she was `8` years old.

`3.` I haven't gone to Ho Chi Minh City for `2` years.

`4.` She has studied ballet since she was `5.`

`5.` I have read the book since last night.

`6.` He hasn't sent me postcards since he was in France. 

`7.` She has written the report for `45` minutes.

`8.` He began to teach the children in `S.O.S` village `2` years ago.

`9.` I haven't eaten eel soup since I was in Vietnam.

`10.` He has had the car for two weeks. 

`-------------`

`@`S + started/began + to V/V-ing + time + ago `|` when + clause

`=` S + have/has + P2 + for + time `|` since + clause

`@`S + last + Ved/V2 + time + ago `|` when + clause

`=` S + have/has not + P2 + for + time `|` when + clause