혹시 etf cf(으)로 찾으셨나요?

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• [BASIC GRAMMAR IN USE] Unit 43, 44 정리 - Oranges. cf. Use who for people (sombody), Use what for things, idea, etc. (something). blog.naver.com · 2023.09.25
• [BASIC GRAMMAR IN USE] Unit 27, 28 정리 -> For the past (yesterday / last week, etc.) we use could/couldn't cf. could는 능력 can의 과거(과거의 끝나 버린 blog.naver.com · 2023.08.28