Use 's or s' where possible: an absence of ten years, the surface of the Earth, the...

Question

Use 's or s' where possible: an absence of ten years, the surface of the Earth, the corner of the table, the branch of the tree, work of two years, the salary of five months, the news of today the end of the journey, the price of the success, a hand of the clock.

Answer 1

Ten years' absence, the Earth's surface, two years' work, five months' salary, today's news.