"What was that,” my Mom asked?
is that a proper talking sentence
put a question mark after that
needs a question mark
"What that was"-yoda
a question mark is needed before you close the quotation marks.
"What was that?" my mom asked. I'm pretty sure that's right
"What was that?" my mom asked.That is the correct punctuation.
Mom should be lowercase and you need a question mark after that
It's like this "What was that?" My mom asked.