All of us were by the question raised by a six-year-old boy.? A.puzzling;puzzlin

All of us were 　 by the 　 question raised by a six-year-old boy.?

A.puzzling;puzzling B.puzzling;puzzled?

C.puzzled;puzzling D.puzzled;puzzled

试题答案

C

be puzzled by指“被难住”;puzzling question指“难题”。