作业帮 > 英语 > 作业

I'm very glad to write back to you _______I heard from you t

来源:学生作业帮 编辑:拍题作业网作业帮 分类:英语作业 时间:2024/04/28 05:57:20
I'm very glad to write back to you _______I heard from you three years ago.
A after B brfore C when D at that time
A:
I'm very glad to write back to you after I heard from you three years ago.
三年前收到你的信后,我就很乐意给你回信.
Before不符合意境,when和at that time 要用过去时,不能用I'm very glad to