问题详情：
-- Mom, I want to buy this dictionary. It is good but not too_______.
--- Let me see. It is really a useful dictionary. And the price is _______. OK, I will buy it for you.
A. high; low B. expensive; cheap
C. high; cheap D. expensive; low
【回答】
D 点拨： 第一句中主语是字典，物品昂贵用expensive,，第二句中主语是价格，价格低要用low 。故选D。
知识点：相似 相近词比较
题型：选择题
