【【【急求】】】5句中翻英『不用翻译网站』没能力勿进

1. they have travelled to Britain before.
2.Jim hasn't finished his homework yet.
3. I have known him for a long time.(这句话要用现在完成时)
4.We have never met each other since then.
5. We have become good friends since he came here.
一楼的翻译得还行,三楼四楼真是让我没什么想法~

1.他们以前去英国旅行过
They had never travelled to england.
2.Jim还没有做完作业
Jim has not finished his homework yet.
3.我认识他有很长时间了
i knew him for a pretty long time.
4.自从那时起，我们彼此没有遇到过
since then, we have never met each other.
5.自从他来到这里，我们就成好朋友了
we were good friend since he came here.

1They once visited England before
2The Jim hasn\'t finished doing homework
3I knew him to have very with long hours
4Ever since that time, we each other has never met
5Ever since he arrives at here, we have already become a good friend