Question

英语题目，有点小疑惑------many times,he still could

-----many times,he still could not understand it.
A Having been told
B He had been told
CThough he had been told（Though he was told）
DHaving told

知道B，D不对，但为什么不选C？

Answer 1

这是独立主格的Ving形式，这里牵扯到时态，C选项，过去完成时，过去式都是不准确的，假设用过去式的话，那后面主句应该是He still didn't understand it.
现在完成时表示从过去某一点到现在是个区间，这样的话就容易理解了，虽然被告知多次，但是还是不懂。
过去式是过去的某个点。

Answer 2

这里考察三点，

1. 被动语态用法

2. 状语从句用法
   

3. 代词做主语时的用法：因为主语he在后半段已经使用，在前半句做状语从句时主语即后半段的he，C中主语重复出现，所以错误