where do they usually play balls?改错题
问题描述:
where do they usually play balls?改错题
答
应该是where do they usually play with balls?
答
应该是play ball
答
balls 改成ball
play ball 是一个词组,意思是:打球,进行球赛
并不因为主语是they,就要把ball改成复数形式