6. They began learning English in 2008 -> they have learned English since 2008. 
7. I tried to make a birthday cake. I don't know how to make it -> although I don't know how to make a birthday cake, I tried to make it. 
8. I don't have much money. I don't buy a new motorbike -> if I have much money, I will buy a new motorbike. 
9. She doesn't know how to make a birthday cake -> she wishes she knew how to make a birthday cake. 
10. They can't open tthe door because they don't have a key -> they wish they could open the door because they don;t have key. 
11. He returned home early because the film was so boring -> He returned home early because of the boring film.

1. Have you read this article on the website? -> you have read this article on the website, haven't you?
2. Does she like watching sports?-> she likes watching sports, doesn't she?
3. "Do you  like learning English?" his teacher asked -> his teacher asked him if he liked learning English. 
4. The Parkers are nice, so Can feels like a member of their family -> because the Parkers are nice, Can feels like a member of their family
5. He has worked in this company for five years -> He started working in this company five years ago.
6. They have learnt English since 2008
7. Although I don't know how to make a birthday cake ,I tried to make it
8 If I have much money I will buy a new motorbike
9 She wishes he knew how to make a birthday cake
10 They wish they could open the door beacause they don't have key
11  He returned home early beacause of the boring film

2. She likes watching sports, doesn't she?
3.His teacher asked him if he liked learning English. 
4. Because the Parkers are nice, Can feels like a member of their family
5. He started working in this company five years ago.
8  If I have much money, I will buy a new motorbike. 
9. She wishes she knew how to make a birthday cake. 
mk chỉ bt chừng này thoy ak