This morning,my brother came to school late again,______ made his teacher very angry.
问题描述:
This morning,my brother came to school late again,______ made his teacher very angry.
填什么,为什么?要详尽理由,
答
which
这是定语从句,这里的先行词是整句句子,所以用which作为引导词
肯定正确