1.They are leaving for Beijing in three days time.
把time去掉
They are leaving for Beijing in three days
2.Gongli is famous for a film star.
for改为 as
Congli is famous as a film star.
3.This term their school bought a lot of equipments for the labs.
bought 改为 will buy
This term their school will buy a lot of equipments for the labs.
4.Rock music is popular by young people.
by 改为 with
Rock music is popular with young people.
5.You look too fat.You'd better take more exercises to lose weight.
excercise,不是复数形式
You'd better take more exercise to lose weight.