请帮忙给出正确答案和分析,谢谢!
He is a rich man.(英译中)
He has proved his courage in the battle.(英译中)
He has a pain in the knee.(英译中)
He has lived here for the last few years.(英译中)
He has been here in London for many years.(英译中)
He has a degree in world history.(英译中)