Their youngest girl is at the stage ______ she can say a single word but not a full sentence A. when...
2022-10-19 15:39:34 29次 2014-2015学年陕西西安市高三下5月模拟英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
Their youngest girl is at the stage ______ she can say a single word but not a full sentence
A. when B. which C. that D. where
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