【题目】_____ he once felt like giving up, he now has the determination to push further and keep on going.
A.Where
B.As
C.In case
D.Now that

【答案】A
【解析】句意：曾经让他感到想放弃的地方，现在他决心继续前进where表示地点，引导让步状语从句；as引导让步状语从句常用倒装，即tried as he has；in case表目的；now that表原因。这里指让他感到想放弃的地方，故选A。