Cheetahs are SLOW / QUICK. They run at 100 km/h.
QUICK
This math problem is EASY / DIFFICULT. I don't know the answer.
DIFFICULT
I love going to Portaventura! Roller coasters are really BORING / EXCITING!
EXCITING
My mum is very BUSY / CAREFUL, she's always working.
BUSY
Tsunamis are EXCITING / TERRIBLE! They destroy everything!
TERRIBLE
Be EXCITING / CAREFUL ! The floor is wet, you might fall.
CAREFUL
Doing homework is BRAVE / BORING! I prefer playing video games.
BORING
This math exercise is very EASY / DIFFICULT. I've finished it in one minute.
EASY
Snails are CAREFUL / SLOW. They aren't good runners.
SLOW