With a hope of

[namloan]

- He had a very good comrade in the WWII. He lost touch with his comrade after the war was over so now he wants to put/place an advertisement in newspapers with a hope of seeing his comrade again.

Does this make sense and have a conversational tone?

Thank you so much

 

[emsr2d2]

- He had a very good comrade in [STRIKE]the[/STRIKE] WWII. He lost touch with his comrade after the war [STRIKE]was over[/STRIKE] so now he wants to put/place an advertisement in newspapers [STRIKE]with a[/STRIKE] in the hope of seeing his comrade again.

Does this make sense and have a conversational tone?

Thank you so much

It has a fairly conversational tone, yes. I have made a few amendments above.
We don't say "the WWII". We either say "WWII" or "THE Second World War".