选D.
句子意思:
那是如此可爱/晴好的一天以致于我想去野餐.
考点:
so...that;such...that 结构和用法.
关键知识点:
和单数名词搭配时,二者的结构分别是:
so+ 形容词+a/an+单数名词
such +a/an+形容词+单数名词
例如:
He is so good a teacher that we all respect him.
=He is such a good teacher that we all respect him.
因此,只有D正确.
祝你开心如意!