At first I thought 주어+동사

At first I thought it was just romance

At first I thought he was samrt, but he wasn't even able to solve a very simple question

At first I thought you were trustworthy, but then I realized you lied to me the whole time.

At first I thought he was joking, but then I realized he was not.

At first I thought it was useless, but then I realized it was very useful

At first, I thought it was too expensive, but now I see why

Thanks for saying that. I'm pretty sure this is the best in the market

참고 서적 : 영어회화의 결정적 패턴 (www.yes24.com/Product/Goods/74400061?scode=032&OzSrank=1)