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.
toys toy
babies baby
louse lice
film films
valleys valley
glasses glass
school schools
wasps wasp
donkeys donkey
actresses actress
salmon salmon
watches watch
sea seas
libraries library
hats hat
calf calves
fox foxes
keys key
cars car
watches watch
proof proofs
horse horses
stories story
train trains
enemy enemies
cliff cliffs
lorry lorries
wolf wolves
army armies
actors actor