问题
选择题
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
答案：B
题目分析：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。