英语根据首字母填空Long,longago,peoplesentmessagesindifferentways.Machlater,somesoldierskmanypigeond,andthesepigeonscouldflyb.Thesoldierscameupwithagoodi.Whenasoldierwentfarawayfromhisownplac

Question

英语根据首字母填空
Long,long ago,people sent messages in different ways.Mach later,some soldiers k______ many pigeond,and these pigeons could fly b_______.The soldiers came up with a good i______.When a soldier went far away from his own place,he could take a pigeon along.He could tie a message to the pigeon's l______.And then the pigeon would send the message back home.

Answer 1

keep
back
idea
leg