34.The employment rate has continued to rise in big cities thanks to the efforts of the local
governments to increase .
参考答案
C
2011_北京卷 (英语)
34.The employment rate has continued to rise in big cities thanks to the efforts of the local
governments to increase .
C
【答案】C
【解析】考察代词。it用来指代前面提到的具体的事情。