题干

What a beautiful sight! Wild flowers of different colors spread all over the hills and around the lake, _______ to the beauty of the valley.
A.to addB.being addedC.addingD.added
上一题 下一题 0.64难度 单项选择 更新时间:2013-11-12 07:09:21

答案(点此获取答案解析)