Completing Sentence: when
1. It is 11 o’clock when we go to bed.
2. When we arrived here, it was late night.
3. 10 am is the time when our classes begin.
4. 1971 is the year when Bangladesh became independent.
5. It is 11 o’clock when we go to bed.
6. It is 11 o’clock when the last train will arrive.
7. 10 pm is the time when I go to bed.
8. 10 am is the time when I go to school.
9. Saturday is the day when the week begins.