问题补充：
My uncle Beijing next week. He is having a meeting there.
A. leaves
B. is leaving
C. is leaving for
D. leave for
答案：
A. leaves
B. is leaving
(答案→)C. is leaving for
D. leave for
解析：考查时态。根据next week可知，应该用将来时。leave/go/come/move等表示位置移动的词，可以用进行时表示将来。leave for意为“动身去某地”。句意“我叔叔下周要去北京开会。”故选C。
