15. ___many times, he still co

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15. ___many times, he still couldn’t understand. A. Having been told B. Having told C. He having been told D. Telling
麻烦您给解答一下,谢谢

解题思路：清楚句子语义；熟悉非谓语的用法和功能；分析句子结构。
解题过程：
你好，答疑如下
A 考点：非谓语。现在分词做让步状语。tell与主语是被动关系，且动作早于谓语，用doing的完成被动式。

1.___many times,but he still couldn't understand it. ___many times,but he made the same mistakes again. ___many times,he finally understood it.A、He is told B、Having ___many times,he finallyy understood it A Told B Telling C H ___many times,he finally understood it.A.Told B.Telling C.Ha 非谓语动词___many times,but he made the same mistake again.A Havi _____scores of times,but he still couldn't understand it. __many times,but he still couldn't understand ( ) many times,but he still couldn't remember . _many times,but he still made the same mistake. ________ many times,he still made the same mistake．（）many times,but he still could not understand it.