The direction_____ which the president would go was kept a secret_____ safety concernA.for, overB.from, aboutC.in, forD.at, as
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C解析试题分析：考查介词的用法。第一空构成定语从句，介词+关系代词，其先行词是“the direction”所以要用介词“in”;第二空应填“for”,表“为了”，for safety concern“为了安全起见”。句意：总统的去向为了保险起见是保密的。选C。考点：考查介词的用法