It was my sister ________ first had the idea to cycle along the entire Mekong River. A. who B. whom ...
2023-01-28 22:09:44 59次 2010年吉林省高一第一次月考英语卷 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
It was my sister ________ first had the idea to
cycle along the entire Mekong River.
A.
who B.
whom C.
/ D.
which
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