fast / win the race
They aren`t fast enough to win the race.
strong / lift weights
He is strong enough to lift weights.
old / drive a car
She isn`t old enough to drive a car.
hot / go outside
It`s too hot to go outside.
tall / reach
She isn`t tall enough to reach it.
tired / work
She is too tired to work.
heavy/ lift
It`s too heavy to lift.
old / ride this bike
He is too old to ride this bike.
tall / eat the leaves
The giraffe is tall enough to eat the leaves.