Spell Well 12

Spell Well 12 - an exercise made by MrsAki 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.
smell
hill
ball
glass
cross
chess
stuff
doll
cuff
cliff
guess
staff