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     ________ many times , he finally understood it.

A. Told      B. Telling    C. Having told    D. Having been told

________ many times, he finally understood it.

A. Told     B. Telling    C. Having told    D. Having been told

________ many times, he finally understood it.

A. Told     B. Telling    C. Having told    D. Having been told

_______ many times, he finally understood it.

A. Told              B. Telling        C. Having told   D. Having been told

 ________ many times, he finally understood it.

A. Told     B. Telling    C. Having told    D. Having been told