IV
1, It is essential that young people cut down on the amount of time on social websites.
2, Many students from the disadvantageous areas have to drop off school to start earning a living.
3, If I had spent more time revising before the exams, I would have passed them.
4, When the exams come, students usually lack time to sleep.
5, If you get on well with your colleagues, they will be willing to support you at work.
V
1, get ready
2, get rid of
3, take up
4, takes after
5, give out
6, turned out
7, turn into
8, cut down on
9, go down with
10, miss out on