Charles: I'm sorry I didn't call you last night. Joyce: What happened? Did you lose your cell phone again? Charles: ( ) I'm really sorry. Joyce: Next time, don't forget to call.
1. Oh, I finally was able to find it. 2. Give it to me if you find it. 3. Yes. It is loose. 4. It just slipped my mind.
どうですか? 答えがわかりましたか? 正しい答えは、4ですね。 slip my mind=うっかり忘れる、ネイティブからよく聞く慣用表現です。 とても生きた会話例ではありませんか?