From the word lettered A to D, choose the word that best completes each of the following sentences As a millionaire he lives in ...

Analyze the question: The sentence is "As a millionaire, he lives in ___." We need a noun that fits the idiom and describes the lifestyle of a rich person.

Explain the concept: This question tests collocations, meaning words that naturally go together. The phrase "live in ___" works with only certain nouns.

• Affluence means wealth and a high standard of living. We say "live in affluence," which is a very common phrase.
• Prudence means carefulness and good judgment. We don't say "live in prudence."
• Frugality means being thrifty or sparing with money. It is the opposite of what a millionaire's lifestyle suggests, and the usual phrase would be "live frugally."
• Abundance means a large quantity of something. We say "in abundance" for things, such as "food in abundance." It describes the amount of something, not a person's lifestyle.

Solution:

1. The subject is a millionaire, so the word must relate to wealth.
2. That rules out prudence (not about wealth) and frugality (the opposite).
3. Between affluence and abundance, only affluence forms the natural idiom "live in affluence." Abundance would need an object, such as "lives in abundance of wealth," which sounds awkward.

Answer: B. affluence

Exam tip: For "live in ___" questions, remember these common pairs: live in luxury, live in affluence, live in poverty, live in squalor. Wealth goes with affluence and luxury. Also remember that abundance usually appears as "in abundance," following the thing that is plentiful.