2. 外语
  3. Replacing printer ink cartridges is expensive. Moreover, disposing of them is【K4】______to the environment. Most cartridges still

Replacing printer ink cartridges is expensive. Moreover, disposing of them is【K4】______to the environment. Most cartridges still

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问题 Replacing printer ink cartridges is expensive. Moreover, disposing of them is【K4】______to the environment. Most cartridges still work after their first use. Recycling them is better than throwing them away because it not only saves money but also reduces pollution.
If you do not know how to【K5】______your cartridges, Office Center is here to help. Illinois’ largest office supplies store has ink-refilling stations in its outlets. All you need to do is drop them off at a service counter and have them【K6】______. Once we find that the cartridges are still in good condition, we will refill them with ink at half the price of a brand new cartridge. You can save money and assist in conserving nature.
Log on to www.officecenter.com now to learn more about this service.
Note: Office Center supports the government’s Clean and Save campaign by selling brands of biodegradable office materials.
【K6】
选项 A、tested
B、to test
C、testing
D、tests
答案A
解析 使役动词have的宾语them与宾语补足语之间为“墨盒受检验”的被动关系，因此选被动形式(A)tested。作为参考，使役动词(make，let，have)的宾语补足语位置用省略to的不定式，但因为是被动关系，所以要用被动形式。
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