Trains are (a)   than aeroplanes. (slow)

I am the (a)   in the family. (young)

This food is the (a)   .(delicious)

Kim is the (a)   actress.(beautiful)

My house is (a)   than yours.(safe)

Billy is the (a)   boy in the class.(naughty)

James is (a)   than Jill.(tall)