From mother’s love, patience and understanding, I have learned what a huge responsibility______ is t...
2022-11-24 08:11:36 99次 2016届四川省高一下期理科英语入学考试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
From mother’s love, patience and understanding, I have learned what a huge responsibility______ is to raise a child.
A. it B. which C. that D. this
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