题干


The old man has a son and two daughters, ______ treating him well, ______ makes him sad.
A.none of them; whichB.and none of whom; that
C.none of whom; whichD.and none of them; that
上一题 下一题 0.85难度 单项选择 更新时间:2010-07-07 02:48:22

答案(点此获取答案解析)