单选题 W: What' s up with Donald? I've never seen him so happy.
M:______.

A、 The weather is fine. Maybe he' s suffering from cold.
B、 His supervisor gave performance evaluation this morning.
C、 Perhaps he was reading some novels.
D、 That' s beyond me. I can' t guess what was happening with Donal

【正确答案】 B

【答案解析】