9.14 -----Our team was defeated in the game made us disappoi

D that 引导的主语从句
以下是针对您的问题补充：
分析句意,正常理解还是我们在比赛中失败这个事实 令我们非常沮丧.做题目尽量避免钻牛角尖,我当年就是这样,于是会很吃亏……
Who的确是可以引导从句的,但是分析后面的成分：Our team was defeated in the game ,那么这个who应该指打败我们的人,如果你非要用这个意思去解释,那么显然,was defeated 后面需要加上by才可以.