The one and only thing I is whether you take a good rest！
A. care for
B. look for
C. care about
D. look after
网友回答
A. care for
B. look for
(答案→)C. care about
D. look after
解析：句意：我在乎的唯一那件事是你是否休息好了。care for关心；look for寻找；care about 在乎；look after照顾。 故选C。
考点: 考查动词短语的用法。