Idioms are not hard and fast rules of grammar. Instead, they're verbal habits and preferences that have become ingrained in the English language after many years of repeated use. To prepare for idiom questions, take a look at the list of common idioms below, split them into two lists – those you know, and those you don't know – and memorize the ones you don't know. It can also help to start reading every day, as idioms appear in almost every kind of reading material available.

6. COMPARISONS

B. List of Idioms