I will thank Mary for her having offered to the baby while I went out. A. have an eye forB

问题补充：

I will thank Mary for her having offered to the baby while I went out.

A. have an eye for

B. keep an eye out for

C. keep an eye on

D. cast her eye over

答案：

A. have an eye for

B. keep an eye out for

(答案→)C. keep an eye on

D. cast her eye over

解析：考查词组辨析：A．have an eye for对…有眼力”、“有识别…的能力B．keep an e ye out for留意C．keep an eye on照顾”、“留意”、“监视D．cast her eye over看一看，句意：我想谢谢玛丽因为在我外出时，她主动提出照看我的孩子。选C。