[单项选择]All the commodities sold in that shop are given one year's ______ .
A. assurance
B. warrant
C. guarantee
D. insurance

[单项选择]All the commodities sold in that shop are given one year's ______.
A. assurance
B. warrant
C. guarantee
D. insurance

[单项选择]What kinds of products were sold in this shop（　）
A. goods
B. services
C. machines
D. contents

[单项选择]Virtually all empty apartments were now sold with vacant possession, at _______ high prices.


A. extremely
B. extensively
C. specially
D. constantly

[单项选择]As is known to all ,____commodities will definitely do harm to our life sooner or later.
A. counterfeit
B. fake
C. imitative
D. fraudulent

[单项选择]But given terrifying scenarios that are now all too possible, those costs will de a small price to pay for the extra ______ they will buy.
A. security
B. sector
C. section
D. sedation

[单项选择]The washing machines sold in our shop will be ______ for one year.
A. guaranteed
B. guarded
C. ensured
D. assured

[单项选择]was given by the committee to all of those who donated money.
A. Recognition
B. Attention
C. Tribute
D. Acknowledgement

[单项选择]Vegetables sold at this shop ______usually fresh and cheap.
A. is
B. are
C. do
D. does

[单项选择]No ______is given at this shop; payment must be in cash,
A. currency
B. coin
C. money D, credit

[单项选择]All the students finished the test（　）the given time.
A. at
B. by
C. till
D. within

[单项选择]Tom sold______ pictures every day, and all______ pictures in his shop were cheap.
A. /, the
B. the, the
C. the, /

[单项选择]Clerks should not leave the shop （）all items are checked
A. until  
B. when 
C. soon  
D. after

[单项选择]The seller should guarantee that the commodities comply ______ the quality, specification and performance as stipulated in the contract.
A. for
B. in
C. to
D. with

[单项选择]

Passage One
Public goods are those commodities from whose enjoyment nobody can be effectively excluded. Everybody is free to enjoy the benefits of these commodities, and one person’ s utilization does not reduce the possibilities of anybody else’ s enjoying the same good.
Examples of public goods are not as rare as one might expect. A flood control dam is a public good. Once the dam is built, all persons living in the area will benefit--irrespective of their own contribution to the construction cost of the dam. The same holds true for highway signs or aids to navigation. Once a lighthouse is built, no ship of any nationality can be effectively excluded from the utilization of the lighthouse for navigational purposes. National defense is another example. Even a person who voted against military expenditures or did not pay any taxes will benefit from the protection afforded.
It is no easy task to determine the social costs and social benef
A. for entertainment and relaxation
B. to work out complex problems
C. to do any of the ten things mentioned in the reading
D. to keep track of expenses and turn appliances on and off