ルール
When "and, but, or, so, yet, for, nor" join two complete sentences, put a comma before the conjunction. Do not use a comma when the conjunction joins only two verbs or phrases.
and、but、or、so、yet、for、norが2つの完全な文をつなぐときは接続詞の前にコンマを置く。2つの動詞や句だけをつなぐときはコンマを使わない。
✔ 正しい文： The plan was simple, but it worked.
✘ 誤った文： The plan was simple but, it worked.
→ 直し方： Place the comma before "but", not after it.
コツ: Comma + FANBOYS joins two sentences. No comma when the second part has no subject (e.g. "She tested and confirmed it").
練習：10問
Which choice completes the text so that it conforms to the conventions of Standard English?
AUSLEXが作成したオリジナルの解説と問題で、College Boardの公式資料ではありません。SATはCollege Boardの商標です。