Up to now, the poet has written eight poems, three are about American country life.
A. of them
B. in them
C. of whom
D. of which
网友回答
A. of them
B. in them
(答案→)C. of whom
D. of which
解析：考查定语从句，代词+of+关系代词，先行词是poems，所以关系代词是which，句意：直到现在，这个诗人已经写了8首诗歌，其中有三首是关于美国的乡村生活的。选C。