some doctors help people.other help animals.doctors that help animals are called vets.people take their pets to go to see the vet when the pets are ill .vet can help _____them well.helping a pet can be_____work .the pet can't tell the doctor ______part of its body hurts.the vet will _______over the pet.then the vet will give the pet some medicines.
pets also should go to see the vet when they are ________.healthy pets need check-up is good for the pet's health.
五个空如何填?