问题
选择题
The expert’s theory, _____ my opinions were based, proved right in the end.[ ]
A. on which
B. whom
C. for which
D. that
答案
答案：A
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The expert’s theory, _____ my opinions were based, proved right in the end.[ ]
A. on which
B. whom
C. for which
D. that
答案：A