3 rational numbers between -2 and 0 are -1.5, -1, and -0.5.
Rational numbers can be either positive or negative, and can even be decimals. Therefore, -1.5, -1 and -0.5 are all rational numbers.
(make sure you change up my words a bit if you're submitting this online, there are bots that scan your words to see if you're getting your answers online!)