汉译英:当我正在读书的时候,爸爸正在看电视.(过去进行时)

问题描述:

汉译英:当我正在读书的时候,爸爸正在看电视.(过去进行时)

I was reading a book while my father was watching TV.

when I was reading a book,my father was watching TV.

when i was reading a book,my father was watching TV