用2种方式表达3:15 4:30 5:50 7:12 11:30 12:20 1:15 9:45的英文

3:15 three fifteen / a quarter past three
4:30 four thirty / half past four
5:50 five fifty / ten to six
7:12 seven twelve / twelve past seven
11:30 eleven thirty / half past eleven
12:20 twelve twenty / twenty past twelve
1:15 one fifteen / a quarter past one
9:45 nine forty-five / a quarter to ten

a quarter past three/three fifteen
half past four/four thirty
ten to six /five fifty