Fill in the gaps:

Telling the time

1. 05:40 It's twenty to six.
2. 02:30 It's half past two.
3. 10:15 It's quarter past ten.
4. 03:00 It's three o'clock.
5. 05:10 It's ten past five.
6. 07:45 It's quarter to eight.

Answer: to; half; past; o'clock; five; to.