问题
选择题
Many restaurant menus include the origins of adish, ____ it is prepared, what the main ingredients are, and which farms the ingredients come from.
A．when
B．how
C．what
D．which
答案
B
题目分析：句意：很多饭店的菜单包括一道菜的原料，怎么准备的，主要配料是什么，配料是来自什么农场。所以选B。