His care________ attitude towards his responsibilities led to many mistakes.
careless
He was punished for his ___________behavior in class, as he kept ignoring the teacher's instructions.
misbehavior
She kept apologiz________ for the delay, even though it wasn’t her fault.
apolozing
The coach had to __________qualify the athlete due to a rule violation.
disqualify
It’s important to __________heat the oven before baking the cake.
preheat