Sắp xếp

1, it / before taking / for students/an exam / to revise / is important / the lesson

2, some girls / in / now because/ are skipping ropes / it is / the play ground / break time

3, while my parents / I am sometimes / looking after / bored with / my sister / are away

4, Last year / so we / not lessons / had two days / we had / off school . / on Saturday