Lucy is ... than Ellie.(old)
older
Christine is ... than Alice. (smart)
smarter
London is ... than Glasgow.(busy)
busier
The blue car is ... than the black car. (nice)
nicer
Susan's hair is ... than my hair. (long)
longer
George is ... than Robert. (funny)
funnier
Julie is ... than her sister. (quiet)
quieter
Jake's room is ... than Larry's room. (small)
smaller