Помогите пожалуйста!Соедините слова.Задание 3

the building of the house; the splitting of the atom; the spreading of the news; the sitting of Parliament; the beginning of the lesson; the singing of the birds; the falling of the object; the spelling of the word; the sinking of the ship; the meeting of the students; the running of the sportsman; the coming of the nurse; the drawing of the picture; the growing of the flowers