Degrees of comparison of adjectives

This shop is the (big) in the town.

I am the (happy) child in the world!

A train is (fast) than a car.

Today the weather is the (hot) of the week.

My father is (old) than my mother.

That box is (heavy) than that.

I have got the (big) room in out flat.

Jeremy is (fast) runner in our class.

A snail is (slow) than a tortoise.