singular - plural 3

singular - plural 3 - an exercise made by Hogaeng8 on Spellic.com.
1. Fold the right part of the paper back so that you can't se the answers.
2. Write the correct answer in the space below each question.
3. When done, fold the paper back and compare your answers.
watch watches
library libraries
toy toys
lorry lorries
valley valleys
hat hats
army armies
car cars
proof proofs
actor actors
louse lice
key keys
wolf wolves
salmon salmon
sea seas
baby babies
train trains
film films
actress actresses
calf calves
horse horses
glass glasses
donkey donkeys
wasp wasps
enemy enemies
story stories
fox foxes
watch watches
cliff cliffs
school schools