Child he is he can speak four different languages.A. as B. although C. if D before

问题补充：

Child he is, he can speak four different languages.

A. as B. although C. if D before

答案：

解析：句意：虽然他只是一个孩子，但是他会说四种不同的语言。as 虽然，尽管；although虽然，尽管； if如果；before在......之前。as引导让步状语从句时，表语/动词原形/副词提前位于句首，表语若是单数名词省去名词前的冠词。故选A。