问题描述：
40. _____ automatically the e-mail will be received by all the club members.
A. Mailed out B. Mailing out c.To be mailed out D. Having mailed out
有了automatically，说明时自动的，为什么不能用mailing阿？？
问题解答：
你题目错啦，不要小看一个逗号哦～
___ automatically, the e-mail will be received by all the club members.(06 上海高考)
A. Mailed out B. Mailing out C. To be mailed out D. Having mailed out
答案选A. 分词短语作状语, 相当于一个假设条件状语从句If it is mailed automatically, e-mail 与mail out 是被动关系.
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