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

Jane Eyre was left a huge sum of money in her uncle’s deathbed _______ .

The practice of hanging clothes across the street is a common ___ in many parts of the city.

In modern society people have to pass various test for professional          so that they can be qualified for a good job.

It is widely accepted that your babies learn to do things because certain acts lead to_____.