A.product price.
B.product quality.
C.production methods.
D.manufacturers.

A.consider the worth of something to be bought.
B.ask for others' advice before buying things.
C.postpone buying things whenever possible.
D.search for things that are less costly.
A.shrewd.
B.cautious.
C.extravagant.
D.thrifty.
A.She is enjoying her language study.
B.She is enjoying her management study.
C.She is not feeling very well at the moment.
D.She is not happy about her study pressure.