Don't touch your face with dirty hands.
Opposite: B. neat

Breakfast is very important, so you shouldn't skip it.
Opposite: A. trivial

Remember to wear a hat and use some suncream when you go to the beach.
Opposite: D. take off

If you don't want to gain weight, you should go to the gym every day.
Opposite: C. lose

Clean hands help prevent the spread of some diseases.
Opposite: D. loose