求从句成分分析 The weather turned out to be very good ,which was mo

求从句成分分析 The weather turned out to be very good ,which was more than we could expect.
The weather turned out to be very good ,which was more than we could expect.
我不理解was后面跟了一句话we could expect ,可这句话没有引导词 .定语从句中which主语,was 谓语,那后面怎么理解?

完整是 was more than what we could expect 比我们预测的还要好
因为前面用了which来连句,we could expect前面的副词what 可以省略,而形成定语从句,省略前面提到的the weather which was more than we could expect
还可以说was better than what we expect