问题
选择题
This is Bob. He's the person I ____ my last letter. [ ]
A. told in
B. referred to
C. referred to in
D. was mentioned in
答案
答案：C
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This is Bob. He's the person I ____ my last letter. [ ]
A. told in
B. referred to
C. referred to in
D. was mentioned in
答案：C