Помогите по англискому домашку

Mrs Green isn't opening the door.She's opening the window. Nick and Jim aren't carrying a bag.They're carrying a table. Susan isn't standing on a desk.She's standing on a chair. Ian isn't drinking milk.He's/she's(не пойму что это за имя)drinking juice. Becky isn't washing her hair.She's washing her T-Shirt. Simon and Paul aren't painting.They're playing.