【题目】Jack’s house has been broken into twice and now he takes________ against theft at any time.
A. risks B. chances C. turns D. precautions
在线课程【答案】D
【解析】
试题分析：考查名词。句意：杰克的房子已经被小偷闯入过两次了，他现在采取措施来防止小偷。A. risks 风险；B. chances 机会；C. Turns转弯；D. Precautions预防措施；根据词义，故选D项。