I met Mr. Shah at ______ U. S. airport.

Question

Accepted Answer

The correct answer to the question "I met Mr. Shah at ______ U. S. airport." is Option 3: "the."

1. Explanation for Option 3 ("the"):
   - The definite article "the" is used before nouns when the speaker believes the listener knows exactly what they are referring to. In this context, "the U. S. airport" implies a specific airport in the United States that both the speaker and listener are aware of. It is not just any airport, but a particular one that has been previously mentioned or is commonly known in the context of the conversation.

2. Explanation for why the other options are incorrect:
   - Option 1 ("a"): The indefinite article "a" is used before singular, countable nouns that are not specific or known to the listener. Since the sentence refers to a specific airport, "a" is not appropriate here.
   - Option 2 ("an"): "An" is the indefinite article used before words that begin with a vowel sound. Similar to "a," it is used for non-specific nouns. Additionally, "an" would not be grammatically correct before "U. S." because "U" is pronounced with a consonant sound ("yoo"), not a vowel sound.
   - Option 4 ("zero"): The zero article is used when no article is needed, often with plural or uncountable nouns, or when referring to general concepts. In this case, since we are talking about a specific airport, the zero article is not suitable.

In conclusion, Option 3 ("the") is the correct choice because it appropriately indicates a specific airport that is known to both the speaker and the listener.