【正确答案】 A

【答案解析】extract：取出；拔出。take out：取出；拔出。The dentist took out five of Mary's teeth．牙医拔掉了玛丽的五颗牙。repair：补。The garage charged me forty dollars to repair the car．修车厂要了我40美元修车费。pull：拉。The horse is pulling a cart．马拉着车。pull out：拔。The dentist pulled out all her bad teeth．牙医拔掉了她所有的坏牙。dig：挖掘。We have to dig through the mountains to lay this pipe．为了铺设这条管道，我们得挖通这座大山。