Решение:
Нужно вписать сравнительную и превосходную степени прилагательных.
a)
- large — larger — largest
- rich — richer — richest
- hot — hotter — hottest
- dirty — dirtier — dirtiest
b)
- beautiful — more beautiful — most beautiful
- interesting — more interesting — most interesting
- useful — more useful — most useful
- famous — more famous — most famous
c)
- good — better — best
- bad — worse — worst
- little — less — least