This question tests your understanding of grammar and vocabulary in the context of economic terminology. Let's analyze the sentence structure step by step:

Step 1: Identify the main sentence structure
The sentence is: "The term _____ to describe the amount of goods and services _____ in a country for each person in one year is per capita GNP."

Step 2: Analyze the first blank
The first blank requires a word that shows how the term "per capita GNP" functions. We need a word that means "employed" or "utilized" in this context. "Used" is the correct choice because it means "employed for a purpose." "Using" would be grammatically incorrect here as it doesn't fit the sentence structure.

Step 3: Analyze the second blank
The second blank describes what happens to "goods and services" - they are created or manufactured in a country. Since this is a passive construction (the goods and services receive the action), we need the past participle form "produced." The phrase "goods and services produced" means "goods and services that are produced."

Step 4: Evaluate the options

• "using / produced" - Incorrect because "using" doesn't fit grammatically
• "used / be produced" - Incorrect because "be produced" creates a grammatical error
• "used / producing" - Incorrect because "producing" is active voice, not passive
• "used / produced" - Correct! Both words fit perfectly grammatically and semantically

Final Answer: The correct words to fill in the blanks are "used" and "produced".

Related Grammar Concepts

Verb Forms: Understanding when to use different verb forms (base form, -ing form, past participle) is crucial. Past participles like "produced" are often used in passive constructions.

Sentence Structure: Recognizing how words function in a sentence - whether they're acting as main verbs, participles, or in other grammatical roles.

Key Formula

While this is primarily a grammar question, the economic concept mentioned follows this formula: