---What do you think made her so upset?
--- her hometown.
A. As she missed
B. Missed
C. Because of missing
D. Missing
网友回答
A. As she missed
B. Missed
C. Because of missing
(答案→)D. Missing
解析：句意：你认为什么使她这么不愉快？想念家乡使她这么不愉快。这是一个省略句，完整形式为：Missing her hometown made her so upset.故选D。