You need Your parents send you to learn, not to play. You need for your parents If you accidentally learn money 20000 of your father and mother to an empty Center.
You need to study hard Your parents send you to school, not to play. You need to study hard for your father and mother. If you do not intend to pay 20,000 of your parents is not zero.
You must study hard. Your mom and dad send you to not play. You must study hard for my father and your mother. If you don"t study hard money 20000 of your mom and dad will be zero?