Write sentences.

12:00 - It's twelve o'clock. 6:30 - It's half past six. 4:15 - It's quarter past four. 1:45 - It's quarter to two. 8:10 - It's ten past eight. 11:50 - It's ten to twelve. 6:40 - It's twenty to seven. 3:20 - It's twenty past three. 5:25 - It's twenty-five past five.