A lot of e-mail English words might us because we seldom use it in our daily life.A. be f

问题补充：

A lot of e-mail English words might us, because we seldom use it

in our daily life.

A. be familiar with

B. be familiar to

C. look unfamiliar with

D. look unfamiliar to

答案：

A. be familiar with

B. be familiar to

C. look unfamiliar with

(答案→)D. look unfamiliar to

解析：考查固定短语。句意：许多电子邮件英文单词可能也许对我们来说并不熟悉，因为我们在日常生活中很少使用它。故选D。