请问1.Quiet a student as he is,he is very active.2.Quiet student as he is,he is very active.

问题描述:

请问1.Quiet a student as he is,he is very active.2.Quiet student as he is,he is very active.

选B。
这是以as/though引导的让步状语从句。as/though引导的让步状语从句多用倒装语序,即把在从句中作表语的名词、形容词或谓语动词中的助动词放在从句谓语前。当表语是带有a/an的单数可数名词,a/an要省略。又如:
Child as/though he is, he knows much about it.

选B