作业帮 > 综合 > 作业

用所给词的适当形式填空1.I heard Li Lei _____(write) five letters to his

来源:学生作业帮 编辑:拍题作业网作业帮 分类:综合作业 时间:2024/05/19 21:28:48
用所给词的适当形式填空1.I heard Li Lei _____(write) five letters to his friends since last month.
I heard Li Lei _had written____(write) five letters to his friends since last month.
在听说之前动作已完成,所以用过去完成时