问题补充：
She a golden ring when she searched her old box for a letter.
A. came about
B. came to
C. came across
D. came up with
答案：
A. came about
B. came to
(答案→)C. came across
D. came up with
解析：考查动词词组辨析：A. came about发生B. came to来到，C. came across遇上，D. came up with提出，句意是：当她在旧盒子里找信的时候发现了一个金戒指。选C。
