【题目】Some believe that China faces similar problems as devices meant to fight crime _______ to invade privacy.
A. beginning B. begun C. begin D. had begun
在线课程【答案】C
【解析】考查时态。句意：有人认为，中国面临类似的问题，如用来打击犯罪的装置开始入侵个人隐私。as引导原因状语从句中，devices是主语，meant to fight crime是后置定语。缺谓语，根据主句faces可知，用一般现在时。故选C。