Question

I    play 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

Answer 1

D

试题分析：
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，