He would like to trek the jungle of Brazil.A. cross B. across C. through D towards

问题补充：

He would like to trek the jungle of Brazil.

A. cross B. across C. through D towards

答案：

解析：cross杂交，横过；across穿过，横穿； through通过；towards朝向。句意：他想徒步穿过巴西热带雨林。结合语境可知本句介词表示在内部通过，故选C。