a new study shows that sports are their favorite activities,为什么sports前用that
问题描述：
a new study shows that sports are their favorite activities,为什么sports前用that
而不是复数形式those呢?我们后天就期中考了!
答
这个要看that是指什么,这里的that 是指 sports are their favorite activities这件事,而不是指sports期中考试咋样？