Many people kill tigers to get their fur (毛皮).(对画线部分提问)画线部分是 to get their fur __ __many people kill tigers
问题描述：
Many people kill tigers to get their fur (毛皮).(对画线部分提问)
画线部分是 to get their fur
__ __many people kill tigers
答
Why do many people kill tigers ?
不能填 what for，要填也得是：
For what do many people kill tigers ?。这就三空了。
答
填 what for
what for 是“为何”的意思
答
Why do ...
就原因提问