[問題]請問 朗文托福聖經P.300 Q3 structure (已收錄)

[zeuss]

請教各位同學一題文法題，我每次都掛在這種類型的題目，但是我搞不懂這屬於文法中的哪一類。題目如下：
Speech consists not merely of sounds but ____ that follow various structural patterns.

(A) of organized sound patterns
(B) organized sound patterns
(C) that sound patterns are organized
(D) in organizing sound patterns

Ths answer is (A), 但是我搞不懂。可以請教這屬於哪一類的文法結構嗎？

[shinebio]

是 not of......but of.......的句型
就是要符合平行結構