---Little Tom got an “A” in the exam.
--- he’s been so happy these days.
A. No wonder that
B. I wonder why
C. It is a wonder that
D. Because
网友回答
(答案→)A. No wonder that
B. I wonder why
C. It is a wonder that
D. Because
解析：情景对话题。no wonder 难怪… “小汤姆考试得了A”“难怪这些天他如此高兴”