He didn’t know _____ask for help when the accident suddenly happened. A.whom to B. what to C. why to...
2022-12-03 20:22:13 169次 2016届福建长汀县四中九年级上期末考试英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
He didn’t know _____ask for help when the accident suddenly happened.
A.whom to B. what to C. why to
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