we got over 1000 letters,faxes and e-mail from our readers about their New Year's resolutions.

问题描述:

we got over 1000 letters,faxes and e-mail from our readers about their New Year's resolutions.
句中e-mail 为什么不用复数形式?
We got over 1000 letters,faxes and e-mail from our readers about their New Year's resolutions.
句中e-mail 为什么不用复数形式?这句话是新目标八年级英语上册第十单元的一个句子。
e-mail 还是印刷错误?

e-mail 是可数的,所以这句话是要加s.