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      but he still can not understand it.
A．Told many times
B．Having been told many times
C．He has been told many times
D．Though he has been told many times
C
考查句子結(jié)構(gòu)。因為but是一個表示轉(zhuǎn)折關(guān)系的并列連詞，可知前面應(yīng)該是一個句子。排除AB。Though不與but連用，排除D。
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