Joe was very disappointed ____ not finding her cat at home.
A、in
B、for
C、at
D、with
【正确答案】:C
【题目解析】:be disappointed at/in/with之间的区别: 表示对某人感到失望,通常用介词with, in 不用at ;表示对某事感到失望,一般用介词at,with,也可用about,但不可用in;表示对某一行为感到失望,通常用介词at, about,不可用with,in,句意表达对找不到猫的行为感到失望,因此选C