A witch is a person WHO/WHICH practises (black) magic.
a person WHO
A pumpkin is a ______ WHICH is used as decoration.
VEGETABLE WHICH
"Mummy" is a word which SOUND / SOUNDS like "mum".
a word which SOUNDS
A mask is ____________ WHICH covers your face.
AN OBJECT / SOMETHING which
Black cats are animals WHICH IS/ARE "bad luck".
ANIMALS which ARE
Costumes are clothes WICH / WHICH are popular in Halloween.
WHICH
"A treat" is something WHO/WHICH adults can give children when they knock on the door.
something WHICH
Chocolate bars are treats WHO/WHICH children love.
treats WHICH