来源：学生作业帮 编辑：搜搜考试网作业帮 分类：英语作业 时间：2024/07/28 23:06:05
来造个英语句子吧
现在完成时+since+一般过去式 造几个简单的句子呀
He has studied very hard since he came to our school.自从他来到我们学校,他学习就非常努力.
We have been missing them since they left here自从他们离开这里,我们就一直很想念他们.
He has written to me frequently since I fell ill.自从我生病以来,他就屡次给我写信.
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