Question

Much__________I have traveled，I have never seen anyone to equal her in efficiency．

A.although
B.as
C.while
D.if

Answer 1

【答案】：B

此题为as引导让步状语从句时的倒装结构。句意为：我虽然见多识广，但还从未见过比她有效率的人。故选B。