1. 3인칭 단수 주어 + 현재형 동사 s/es She lives in Seoul. He has a lot of friends. The company manufactures cars. He doesn't know… 2. 단수 / 복수 잘 구분하기 I'm taking several courses in school. There are a couple of coffee shops in my neighborhood. I have 2 tests this week. 3. Be+p.p / be+ing I was confused. I was frustrated. I was really excited about the movie. I was amazed! I was surprised. It was confusing. I..