问题描述： I am doing my homework at home for three days.要表将来 1个回答 分类：综合 2014-11-19 问题解答： 我来补答 应该用完成时态.I have been doing my homework at home for three days.我已经在家做作业做了三天.你用的是现在进行时不能加时间段将来I will do my homework at home for three days. 展开全文阅读
