Question

The employment rate has continued to rise in big cities thanks to the efforts of the local governments to increase________.                                                                                                  (2011·北京，34)

A．them  B．those

C．it  D．that

Answer

【解析】 C

解析 句意为：由于当地政府(为增加就业率)所做的努力，大城市的就业率持续攀高。根据句意可知，本题中的代词应该指代上文提到过的名词the employment rate，根据代词的用法可知选项C正确。A项指代复数名词；B项指代可数名词复数；D项指代上文意思。