You had better take a compass when traveling in the forest ,without _____ you may get lost.

题目

You had better take a compass when traveling in the forest ,without _____ you may get lost.
A.it
B.one
C.which
D.that
】
that 为什么不行。

答案

C which 代指前文出现的compass
that 一般不可接在介词后,除了in that ,for that 等固定用法.