问题补充:
Iplay the piano when I was a young boy.
A. wasn’t used to
B. wasn’t use to
C. didn’t used to
D. didn’t use to
答案:
A. wasn’t used to
B. wasn’t use to
C. didn’t used to
(答案→)D. didn’t use to
解析:
句意:我孩提时不常弹钢琴。used to表示“过去常常做某事”,其否定式是didn’t use to。故选D,