He looks upset. He doesn’t know ________. A.what to do it B. how to do it C. how to do D. do what
2023-01-11 12:15:37 39次 2014-2015学年安徽利辛县张村中学八年级上期末质检英语试卷（解析版） 单项填空 反馈错误 加入收藏 正确率 : 100%
题目内容：
He looks upset. He doesn’t know ________.
A.what to do it B. how to do it
C. how to do D. do what
本题链接：
