Question

Which conjunction best fixes the run-on sentence? Did Miguel say if he found the overdue library book, __________ didn't he look?

Answer 1

Well, say the question aloud and try to figure it out.
.....if he found the overdue library book, or didn't he look
.....if he found the overdue library book , but didn't he look?
.....if he found the overdue library book, and didn't he look?

I think that personally, or fixes that up pretty good. ;)
From one Smartie to another- BubbleSmartie11