4. in winter/ in August/ on 5th April/ at night/ in 2020/ in the afternoon/ at the weekend/ on Friday morning/ at 8 o`clock/ on Tuesday
5. 1. We always have breakfast.
2. Tom is never late.
3. They often do their homework in the evening.
4. You usually get up at 7 o`clock.
5. I am sometimes early for school.
6. The students always finish their lessons at lunchtime.
7. We usually have Maths tests on Monday.
8. Kim never wakes up early.
Succes!