EX3:
1. How often do you have maths?
--> I have math three times a week
2. How often does Hoa return home?
--> Hoa returns home twice a year
3. How often do they take holiday?
--> They take holiday four times a years
4. How often do you late for school?
--> I am never late for school
5. How often does he go to work?
--> He goes to work fives days a week
6. How often do you have good marks?
--> I have good marks everyday
7. How often does Nam absent from school?
--> Nam is rarely absent from school
8. How often you visit your grandparents ?
--> I visit my frandparents every weekend