题干

---- Look! Everything here is under construction.
---- Oh, has the building once ___ for exhibition been pulled down, too?
A.having been builtB.being builtC.to be builtD.built
上一题 下一题 0.64难度 单项选择 更新时间:2011-07-16 03:28:52

答案(点此获取答案解析)