I’m playing the football in the playground.对（playing the football）进行提问
问题描述：
I’m playing the football in the playground.对（playing the football）进行提问
Tom is reading books in his study.对（reading books）进行提问
The ducks are swimming.对（swimming）进行提问
答
为你解答.I’m playing the football on the playground. 对（playing the football）进行提问What are you doing on the playground?Tom is reading books in his study.对（reading books）进行提...