1) The teacher comes to school at 8 o'clock.
2) I don't usually work in summer.
3) Some shops aren't open on the 1st of May.
4) Do you work at weekends?
5) There's a football match in May.
6) The boys have lunch at 1 o'clock.
7) They never eat in the evening.
8) The park isn't busy on Friday.
9) It's on the shelf.
10) There are three pictures on the wall.