not...until

it wasn't until nearly a month later _____ I recieved the manager's reply A since B when C as D that

解题思路： not...until...的强调句型。
解题过程：
It wasn't until nearly a month later _____ I recieved the manager's reply
A since B when C as D that
答案是D
翻译：直到将近一个月以后，我才收到了经理的回复。

解释：
1. 此题为not...until...的强调句型。
强调句型的基本结构是：It is/was + 被强调部分 + that/who/whom + 句子未被强调部分。
该句型可以用于强调除谓语外的句子所有成分。
如果被强调部分为sb时，引导词可以用who/whom，who强调主语sb，而whom强调宾语sb。
但是that可以用于任何强调句型。
该句型的最大特点是：去掉it is/was和引导词that/who/whom之后，剩下部分为完整的一个句子（有时候需要调整句序）。
如：I met him in the street yesterday.
强调主语I时，改为：It was I who/that met him in the street yesterday.
强调宾语him时，改为：It was him whom/that I met in the street yesterday.
强调地点状语in the street时，改为：It was in the street that I met him yesterday.
强调时间状语yesterday时，改为：It was yesterday that I met him in the street.
以上句子如果去掉被it was和引导词that/who/whom外，适当调整句序后，都会还原成原句：I met him in the street yesterday.
2. 而not...until...的强调句型为：It is/was not until + 状语/状语从句 + that + 句子/主句的肯定句形式。
如：I didn't go to bed until my parents returned.
其强调句型为：It was not until my parents returned that I went to bed.
再如：I didn't go to bed until 11:30 pm.
其强调句型为：It was not until 11:30 pm that I went to bed.
3. 该句原句为：I didn't receive the manager's reply until near a month later.
变成强调句型为：It was not(wasn't) until nearly a month later that I received the manager's reply.
所以正确答案为D。
有点难，要耐心看呀。有不明白的地方，请留言
最终答案：略