单选题
Upon finding her son missing, the lady was {{U}}utterly{{/U}} at a loss
what to do.
A. partially
B. impartially
C. entirely
D. incidentally
【正确答案】
C
【答案解析】utter这个词比较麻烦，既是动词(发出某种声音)也是形容词(完全的)，所以utterly的意义是“完全地”，接近completely或entirely；partially：部分上，偏袒地；impartially：公正地；incidentally与名词incident关系不大，意义相当于by the way。