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