问题描述: Mrs Green has been off work because of s_____.She is now in hospital 1个回答 分类:英语 2014-09-25 问题解答: 我来补答 sickness.因为because of 中of是副词,后面加的是名词,其实用类推法很容易明白,类似great of,thinks for... 展开全文阅读