The price of vegetables has ____because of bad weather A,doubled B,double C,twice D,twiced为什么?

问题描述:

The price of vegetables has ____because of bad weather A,doubled B,double C,twice D,twiced
为什么?

a吧 首先has后要加过去分词,twice是数词,不能加ed.
大概是这样吧.