Помогите Определить время, используя слова четверть и половину

3:30 half past two 11;45 quarter before twelve  3;15 quarter past three 13;30 half past one 5;45 quarter before six 8;45 quarter before nine 5;15 quarter past five 9;30 half past eight 5;30 half past four 10;15 quarter past ten 7;15 quarter past seven

3:30 it is half past three. 11:45 it is a quarter to twelve. 3:15 it is a quarter past three. 13:30 it is half past one. 5:45 it is a quarter to six. 8:45 it is a quarter to nine. 5:15 it is a quarter past five. 9:30 it is half past nine. 5:30 it is half past five. 10:15 it is a quarter past ten. 7:15 it is aquarter past seven.