Add the suitable pronoun: who which whose where or when

Gapfill exercise

Enter your answers in the gaps. When you have entered all the answers, click on the "Check" button.
A fridge is a machine keeps food cold.
A cook is a person prepares meals.
A stationery is a shop sells pens, pencils, rulers etc.
December is the month we celebrate Christmas.
This is the house I was born.
The woman is standing at the door is my best friend.
A carpenter is a person works with wood.
The weekend is a time we can relax a lot.
The zoo is a place you can see many animals.
She is the student father is the headmaster.
A dictionary is a book you can find unknown foreign words.
A microwave oven is a thing can warm your meals.
The boy father is our doctor won the competition.
A technophobe is a person does not like machines.
A dishwasher is a machine cleans your dishes.