b. It was the happiest day of my life.
c. It's the best film I've seen.
d. It was the worst mistake in my life.
e. It was the coldest day of the year.
f. She's the most popular singer in the country.
g. He's the most boring person I know.
h. It is the biggest house I've lived in.
I. He is the tallest cousin I have.
j. She is the prettiest girl I know.
