问题补充:
the problem of land erosion(侵蚀) getting more serious, the government is searching for a way to deal with it.
A. As
B. When
C. With
D. If
答案:
A. As
B. When
(答案→)C. With
D. If
解析:句意:随着土地侵蚀的问题越来越严重,政府正在想办法解决它。as和with都可以表示随着,但as是连词,接从句,with是介词,接名词或名词的复合结构。the problem of land erosion getting more serious是一个名词的复合结构,故选C。