问题
选择题
_____ many times, but he still couldn't understand it. [ ]
A. Though he had been told
B. Having been told
C. Having told
D. He had been told
答案
答案：D
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_____ many times, but he still couldn't understand it. [ ]
A. Though he had been told
B. Having been told
C. Having told
D. He had been told
答案：D