Not until I was standing on the edge of death ____ how much I wanted to live.

A．I realized

B．did I realize

C．I had realized

D．had I realized

国家把______作为西部大开发的强大动力和重大任务，积极推动国有食业改革，大力发展混合所有制经济。

A．深化改革
B．扩大开放
C．发展公有制经济
D．发展非公有制经济
E．完善市场体系