13.The boy is too young to drive a car

14.What would you do if you were a millionaire?

15.Mary is more friendly and beautiful than Hoa

16.Lan went to England last year so that she could improve her English

17.I am not rich enough to buy a new car

18.It takes John 3 hours to finish that report

19.The man who is standing over there is my teacher of English 

20.We have not met each other since we left school

 1, the boy is too young to drive the car

2, what would you do if you were a millionaire

3, mary is friendly and beautiful than hoa

4, lan went to england last year so that improve english

5, i'm not rich enough to buy a new car

6, it takes john 3 hours to finish that report

7, the man standing/who stands over there is my teacher  of english

8, we have not met each other since we left school