Помогите пожалуйста избрать необходимое причастие 1)That man (standing/stood) at the window

Помогите пожалуйста выбрать необходимое причастие 1)That man (standing/stood) at the window is my uncle. 2)Mother became angry because she saw a (smoking/smoked) cigarette. 3)Our home task is to make up sentences with the (learning/learnt) words. 4)When (visiting/visited) the museum we saw a lot of species of extinct animals. 5)Our teacher wanted us to discuss the (reading/read) book. 6)On the table I found a (writing/written) message for Jane. 7)(Speaking/spoken) too loudly he drew our teachers attention