书名：寂天1000题阅读
页数：p.8
题目：In order to reduce costs,Busan Consulting's _____ use od office space
and equipment has been adopted by many local business.
(A)economical
(B)economy
(C)economist
(D)economize
疑问：为何不能选B? 's后面不是接名词吗?(答案是A)
页数：p.9
题目：The Perfect Pet Parlor is a chain of stores _____ a large selection of
pet food and pet accessories at a resonable price with excellent sales
support.
(A)sell
(B)sells
(C)sold
(D)selling
疑问：不知道文法结构.... 我写B(答案是D)