问题
选择题
Once_____in the forest, you ought to remain__ you are waiting for help．
A．being lost; where
B．losing; where
C．lost; there
D．lost; where
答案
答案：D
这题考查状语从句的省略式，once lost="once" you are lost，第二空考查表语从句，remain是连系动词，后面接表语从句，表语从句中缺地点状语。选D.句意是：一旦你在树林里迷路了，你应该呆在原来的地方等着帮助。