Listen to Walter talking about an experience he had. For questions (1-3), choose the best answer (A, B or C). (Nghe Walter nói về kinh nghiệm anh ấy có. Chọn đáp án đúng nhất (A, B, C) cho các câu hỏi (1- 3).) Walter went to Spain _____ . A. by plane B. with his parents and sister C. in the spring