in order to ___ the trip properly,they went to the library to find a large atlas that showed __ about the Mekong River
问题描述：
in order to ___ the trip properly,they went to the library to find a large atlas that showed __ about the Mekong River
答
in order to _manege__ the trip properly,they went to the library to find a large atlas that showed _everything_ about the Mekong River