【题目】Sarah ______ change her mind, even though she knew the plan was hard to carry out.
A. mustn’t B. wouldn’t
C. shouldn’t D. needn’t
在线课程【答案】B
【解析】
试题分析：考查虚拟语气。句意：即使她知道这个计划很难执行，她也不会改变想法。even though she knew the plan was hard to carry out表示对将来的虚拟，主句用would +动词原形，故选B项。