问题
选择题
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
答案：C
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。