I don't know what are doing this afternoon这个句子对么

I don't know what we will do this afternoon改为同义句 1.I don't know if ________ this afternoon. I don′t know if he come this afternoon I don′t know if comes back this afternoon I don't know what are you what are you doing later this afternoon what are you doing Friday afternoon?对么?为什么啊 i don't know what is he doing? .I don't know what am me doing everytime中文 i dont know who are those people这个句子对么? I don't know what mean for this question!I don't know what m I don't know what are you thinking about?还是I don't know what