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 _________several times, but Mary still has no idea of how to do it properly.

A. Being shown               B. Having shown              C. Having been shown  D. I’ve shown her

_________several times, but Mary still has no idea of how to do it properly.

A. Being shown                 B. Having shown          C. Having been shown  D. I’ve shown her

_________several times, but Mary still has no idea of how to do it properly.