why is he standing there waving at me?现在分词做什么句子成分waving 是现在分词吧,做什么句子成分

Why are you standing here?I amWhy are you standing here?I am waiting for my son.he ____ back from school.A.didn't comeB.won't comeC.hasn't comeD.hadn't come讲一下为什么 画线部分提问He is standing _at__the__bus__station____ He is standing on the chair是什么意思 He is standing by my bike 翻译 why引导的主语从句why he didn't come is that he was ill. 对吗? why is mr king standing near the counter什么意思 why is he crying? why is he crying? Why is he scared? why is he doing 英语句子成分划分He didn't come.That is why he didn't know 为什么Why don't you不能写成Why do not you?Why isn't he 又为什么不能写成Why is not he? why is he standing there waving at me?现在分词做什么句子成分waving 是现在分词吧,做什么句子成分 (_____ ) is Wang Lin?He is standing over there没有 ---Why isn't he very __ (sad)?----Because he is late for school.词形变化 The reason why he didn't go to school is that he was ill.是什么从句? i don't think he is honest,『 』 he?填什么is or isn't?and why? that is what he don't like her与that is why he don't like her 区别