20. You can find your way back to your branch room easily without leaving any branches

题目内容(请给出正确答案)

20. You can find your way back to your branch room easily without leaving any branches as you walk.

参考答案和解析
正确答案:
20.F【解析】根据第五段“Don -t just walk away. Drop small branches as you walk so that you can find your way back”可知此题错误。
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