let's ask the robot if there's a discount on the old the CDs we like .they're always very -------A.cheap B.expensive C.old D.dirty横线上应填什么
问题描述：
let's ask the robot if there's a discount on the old the CDs we like .they're always very -------
A.cheap B.expensive C.old D.dirty
横线上应填什么
答
B.discount 是打折的意思。祝你成功
答
B
句意：让我们查一下（机器）那些老唱片有没有打折的,他们总是很贵.
根据题意,如果是总是便宜或者老、旧,就不会关注是否有减价了,所以应该选B 昂贵.