Заполните отсутствующие предлоги People usually don't work …

Заполните отсутствующие предлоги People usually don't work … Saturday and Sunday. My family is … home today. My mother is busy … the kitchen. Myfather is working … the garden. She is sitting … the table … a pen in her hand. I am writing a letter … my sister. I always clean my room … Sunday. She has a pen … her hand.