In my country, the ________ are all distributed free.A、letters boxB、letters box

游客2023-11-22 68

问题 In my country, the ________ are all distributed free.

选项 A、letters box
B、letters boxes
C、letter’s box
D、letter boxes

答案 D

解析在此处letter box是两个名词叠加，中心词为box，类似用法如history teacher等，letter相当于形容词的作用，不用复数；由于系动词用are，因此 box应用复数。

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