问题
选择题
_____ many times, he finally understood it. [ ]
A. Told
B. Telling
C. Having taken
D. Having been told
答案
答案：D
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 taken
D. Having been told
答案：D