The weather was very sunny the following day,_______ was wha

我给你搜了一下.当从句的谓语动词是be或相当于联系动词的seem, become等时，可 用as或which作主语。但当从句的谓语是行为动词时，只能用which作主语。例如： He married her, as (正确) was / seemed natural. Which （正确） He saw the girl, as (错误) delighted him. Which （正确 AS;WHICH引导一个非限制性的定语从句，表示主句整句话的内容，AS代表整个句子内容，并在定语从句中充法主语时，从句的谓语动词必须是系动词，若定语从句的谓语动词是行为动词时，只能用WHICH来引导定语从句 My sister is so beautiful as your sister. It rained hard yesterday ,which perevented me from going to the park. AS引导非限制性定语从句，可以代替主句的全部或部分内容，常表示说话人关于说话人的依据、态度、评论、看法，常译成 正如.....一样，好像.....一样，定语从句AS可以放于句首，句中、句末 Happiness ,as Doctor Barrd said ,is not an end ,but a prodess