Ответ:

1) It's half past ten.

2)It's half past six.

3)It's four o'clock.

4)It's a quarter to three.

5)It's two o'clock.

6)It's twenty past seven.

7)It's twenty-five to one.

8)It's a quarter past three.

9)It's five to ten.

10)It's twenty-five past nine.

11)It's twenty to two.

12)It's five past nine.

13)It's ten to twelve.

14)It's ten past twelve.

15)It's five to four.