问题
选择题
_____ many times, he finally understood it.
A．Told
B．Telling
C．Having told
D．Having been told
答案
答案：D
本题考查非谓语的用法。tell与主语之间的关系是被动和完成的关系，所以用having been done来表示被动和完成。
搜题请搜索小程序“爱下问搜题”
_____ many times, he finally understood it.
A．Told
B．Telling
C．Having told
D．Having been told
答案：D
本题考查非谓语的用法。tell与主语之间的关系是被动和完成的关系，所以用having been done来表示被动和完成。