因为,what 是 问句的主语,Jack's breaking是动名词结构可以做主语,替代what.
what made you so angry?---______my precious cup _____ saying sorry.
A Jack broke;without B Because Jack broke; instead of C Jack's breaking; without D Jack breaking ;instead of 为什么选C不选A
因为,what 是 问句的主语,Jack's breaking是动名词结构可以做主语,替代what.