Question

— You're moving to Japan. You must be kidding!

— No.             . My dad is going to work there, and we were going there with him.

A. I’m serious B. Go ahead C. you’d better not.

Answer

A

【解析】

句意：——你要搬到日本去。你一定是在开玩笑!——不。我是认真的。我爸爸要去那里工作，我们和他一起去的。考查口语交际。A. I’m serious我是认真的；B. Go ahead开始；C. you’d better not. 你最好不要，表不同意。根据下文My dad is going to work there, and we were going there with him.可知真要去日本，不是开玩笑，故选A。