急你所急.大可放心.
1. If you don't push harder, you will never succeed.
2.One cannot put a price on what parents have contributed to their children.
3. A good amount of Fred's spare time has been spent on collecting used cars and restoring them to what they once were.
4. As a mature and responsible educator, William has full faith in his students.
5. Parents should bear in mind the fact that if they are always critical of their children, they can't expect the latter to build up their self-confidence.
注：其中the latter取代了them,以跟前面指父母的they区别开来.是很地道的用法.