From Twitter
A. Was your dad in the service?
B. Yes--in __ navy.
A. And yours?
B. __ army.
A. Where was he stationed?
B. Alaska. My uncle was in two branches: __ Navy in world war II and the army in during the Korean war.
A. Really?
B. Yeah, but he bailed before Vietnam.
* a
* that
*the
br
日本語訳
A：お父さんは軍にいたの？
B：うん、海軍に。
A：君のお父さんは？
B：陸軍だよ。
A：どこに配属されていたの？
B：アラスカ。おじは二つの軍種にいたんだ。第二次世界大戦中は海軍、朝鮮戦争中は陸軍に。
A：本当に？
B：うん。でもベトナム戦争前に軍を離れたよ。
海軍・陸軍の前に入る冠詞を a／that／the から選んでください。
解答・解説
>Answers And ExplanationThe answer in both cases is 'the,' because this is the way we talk: a special, common thing--known to everyone, such as the branches of the military, take the definite article 'the,' for that special quality and because of their being so common, but most importantly because they are singular countable entities.
原文は、どちらも the と説明しています。in the navy、in the army のように軍種を指す際に定冠詞を使います。原文の本文には the army in during という語の重複があります。