Spell Well 10

Spell Well 10 - 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.
lick
kick
duck
thick
sick
stick
black
back
sock
brick
clock
knock