such+ a/an+形容词+单数可数名词+that…
such+形容词+复数可数名词+that…
such+形容词+不可数名词+that…
such+不可数名词+that…
This is such an interesting book that we all enjoy reading it. 这本书非常有趣,我们都喜欢看。
They are such interesting books that we all enjoy reading them. 这些书很有趣,我们都喜欢看。
He shut the window with such force that the glass broke. 他关窗子用力很大,玻璃都震破了。
所以选a
such that是固定短语啊。how有什么道理呢