参考答案：D

解析：[分析] 习惯搭配。 take to喜爱，亲近；Two keen minds that they are, they took to each other．越敏锐的两颗心，越容易互相吸引。take on从事，开始对付：took on extra responsibilities担负了额外的责任。take off放开，离开：took the brake off开闸。