With the ________ of modern science and technology, more and more waste land in the west of our country has been ________．A.development; developingB.developed; developedC.developed; developingD.development; developed
网友回答
D解析根据第一空前的冠词可知此处应填名词development。第二空应用其动词的过去分词构成被动结构。故应选