Меня в школе не было 1 месяц помогите спасибо сразу

a) My friend ______ (talk) on the phone when I came info the room.
b) What _______ (you/do) at 4 o'clock yesterday afternoon?
c)I ____________ (speak English) when my teacher came info the classroom.
d)Omar ______ (read) a book when Colin phoned him.
e)Dmitry _____ (write) a letter when I came info the