I’m playing the football in the playground .(对划线部分进行提问)划线是I'm 到底是Who is playing.?还是Who are playing.?这个句子变成一般疑问句,是Am I..?还是Are you.?

1）这个句子变成一般疑问句是：Are you ...? 因为自己问自己在踢球正常情况下是不会这样的
2）对画线部分提问的话：
从语法上说：Who is playing....?
Who are playing....? 都是正确的
但是，用前者更好，因为，我们有原句哦·是I am playing
解释：who 是一个特殊疑问代词，它后面是用单数还是复数，根据它自己是没有办法判断的，要看它所指代的名词是单数还是复数，要跟所指代的词保持一致
希望帮到你

Who is 谁正在操场上踢足球，不管是第几人称，只要是单数就用is，复数再用are
Are you 一般疑问句是别人问你，你正在操场上踢足球吗？回答是Yes, I am. / No, I'm not.

1 Who is playing football in the playground?
2 What are you doing in the playground?
3 Where are you playing football?
4 What ball game are you playing in the playground?
5 What are you doing?

Who's playing the football in the playground?
一般疑问句
Are you playing the football in the playground?

对划线部分进行提问 在不知道是谁的情况下,用who is应该是
Who is playing the football in the playground
变成一般疑问句,要把第一人称改成第二人称,是
Are you playing the football in the playground?