----Must I do well in all the subjects, Mum?----Sure, baby! As an old saying goes, knowledge is _________.

We can’t afford such an expensive car. You know, our total _____ adds up to no more than $10,000 a year. 

 There existed an obvious________ between the accounts of the witnesses, so a judgment was not announced in court.

The young man works very hard from a(n) _____to become rich.

We need to strike a ______ between the needs of the community and the rights of the individual.