I enjoyed all his novels with the_____of his last.

Global warming caused by human being’s casual behaviour has become a major _______ for people all over the world.

Your as a student will be excellent if you develop a habit of reflecting on how you learn.

She wasn’t a much older tennis player but he had the great ______ of experience about games.

When you decide to start a family, you make a/an ______ to them. You shouldn’t turn your back on the people who love you.