南通模拟题）--I don't know ___.--I'm not sure .Maybe he is a businessman A.who he is B who is he C what he does D what does he do 为什么选A为什么不选c?为什么选A为什么不选c?

南通模拟题）--I don't know ___.--I'm not sure .Maybe he is a businessman A.who he is B who is he C what he does D what does he do 为什么选A为什么不选c?为什么选A为什么不选c? I don't know. “i don't know you know i don't know sorry,I don't know. i don`t know much I don't really know. 英语；I don't know I don't know miss I don't know him. I don't know now 翻译 i don't know So know,I don't I don't know her i don't know anything 7.I don’t know.How do I use commas?（变成一个复合句） I don’t know I use commas.I don’t know怎么写? I‘m s（）,I don't know the same I know enough to know that I don't know I don`t know how to have fun.(同义句） I don`t know how to have a good time.I don`t know how to()(