_______ found by the police, the killer had to hide themselves in a mountain cave for two months
A.In order to not beB.In order not to beC.So as not to beD.So as to not be在线课程B
解析：
考查目的状语。In order to 与So as to 都有“为了”之意但是位置不同， In order to 位置灵活而So as to只位于句中；不定式的否定式在不定式前加not。故选B