Yet I know that —— all the money spent on war was spent on ending

问题描述:

Yet I know that —— all the money spent on war was spent on ending
Yet I know that —— all the money spent on war was spent on ending poverty and finding environmental answers,what a wonderful place this would be.
填if 还是whether?正解是if,

是if,“如果”的意思
我知道如果把花在战争上的钱投入到消灭贫困和环境保护中,这将是个多美妙的地方啊.
用whether是要有选择的,这里没有难道whether没有如果得意思么?老师说过whether的用法多一些诶。。。