Here's the answer:
“真的假的?”
(zhēn de jiǎ de?)
Watch a real native speaker say it:
Here's how it sounds in a textbook:
Fun fact: the hundreds of thousands of people learning Chinese with Memrise get this phrase correct 91.44% of the time!
(zhēn de jiǎ de?)
Fun fact: the hundreds of thousands of people learning Chinese with Memrise get this phrase correct 91.44% of the time!