来造个英语句子吧
问题描述：
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
答
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 freque...