In many countries more and more forests and even agricultural land are being lost to devel

问题补充：

In many countries more and more forests and even agricultural land are being lost to development, much of the land to become desert.

A. caused

B. causing

C. having caused

D. to cause

答案：

A. caused

(答案→)B. causing

C. having caused

D. to cause

解析：考查非谓语动词。句意：在许多国家，越来越多的森林甚至农田正在给发展让路，造成大量土地的沙漠化。现在分词可以表示自然而然的结果，故选B。