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(2006·青海中考题)

They have ________ a lot of advanced electric equipments.

[  ]

A.done
B.designed
C.been done
D.been designed

答案:B
解析:

解析:本句的谓语动词是dodesign,无论选用哪一个动词,句子的主语they都是它们的执行者,故本句谓语应该使用主动语态,而不是被动语态;从动词所表示的意义看,“制造设备”应该使用动词make而不是do。故选B


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