问题补充:
---I beg your pardon?
---Your mind must be when I was speaking, wasn’t it?
A. wondering
B. wandering
C. walking
D. speaking
答案:
A. wondering
(答案→)B. wandering
C. walking
D. speaking
解析:考查词义辨析。wonder 想知道,wander徘徊,walk步行,speak说话,句意:你再说一遍?当我说话的时候,你的大脑一定走神了,对不对?故选B。