1. After going _______ lots of difficulties, he succeeded in his business.
A. over B. through C. across D. into
2. It was the first time in my life that I ______ the wonderful scene.
A. saw B. had seen C. have seen D. see
3. ---Let’s go for a walk after supper. ________.
A. Really? B. Why not? C. Good idea! D. Go, please.