The one and only thing I is whether you take a good rest！A. care for B. look forC. care a

问题补充：

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

答案：

A. care for

B. look for

(答案→)C. care about

D. look after

解析：考查词组辨析。care about关心，在乎。句意：唯一我关心的是你是否得到好的休息。选C。