I’ll let you know I receive Brain’s e-mail message.A. for the momentB. at the momentC. the

问题补充：

I’ll let you know I receive Brain’s e-mail message.

A. for the moment

B. at the moment

C. the moment

D. by the moment

答案：

A. for the moment

B. at the moment

(答案→)C. the moment

D. by the moment

解析：考查连词。the moment相当于一个连词，表示“一……就……”，其它只能作状语。句意：我一收到英国的电子邮件的信息，我就让你知道。