题干

  Can you tell me ______ to join the army?
A.how does a person have to be oldB.how old does a person have to be
C.how old a person has to beD.how a person has to be
上一题 下一题 0.64难度 单项选择 更新时间:2010-06-30 03:48:14

答案(点此获取答案解析)