i was reading a book an old friend of mine came to visit me.怎么做讲解

Question

如题所述

Answer 1

我正在读一本书的时候我的一位老朋友来看我.

Answer 2

i was reading a book an old friend of mine came to visit me.
我正在读一本书，我的一位老朋友来看我.。

Answer 3

少了when??
I was reading a book when an old friend of mine came to visit me
when=at that time【就在那时】，两个动作在过去同时发生，持续时间长的用过去进行时，非延续性动词用一般过去时。本回答被提问者采纳