Modals for Advice & Obligation (Pets) – 20-Question Worksheet
Instructions: Fill in each blank with one of these modal phrases: should, ought to, must, have to, don’t have to (or must not where appropriate). Type the full phrase. Spelling counts.
Tip: For negatives, you can write don’t have to or do not have to. For prohibition, use must not or mustn't.
You keep your dog on a leash in the park.
You walk a cat every day, but many enjoy going outside on a leash.
Puppies get bored easily. You give them safe toys.
Hamsters are small, but you clean their cages regularly.
If your dog is overweight, you reduce its food portions.
To save money, you consider adopting a pet from a shelter.
Fish owners buy expensive food; simple flakes are enough.
All dogs have a license in this city. (law)
If a cat is sick, you take it to the vet quickly.
You feed chocolate to dogs—it’s dangerous!
To travel abroad with a pet, you show vaccination papers.
You spend a lot of money on toys—sometimes pets like simple objects.
Volunteers at shelters be kind and patient with animals.
Owners spend time playing with their pets. It helps them feel happy.
Birds have baths every day, but it’s healthy sometimes.
A responsible owner provide fresh water at all times.
Kittens get their first vaccinations.
You brush your dog’s fur every day to keep it healthy.
You own a big house to have a pet; small pets fit in apartments.
To protect your pet from fleas, you give monthly treatments.