№1a cities,a men,a pens, wives, a cats, a dogs, a flats, a boys, a glasses, a foxes,a thiefs,a buses,women,a mouths
№2clean-cleaner-the cleanest
Near-nearer-the nearest
bad-worse-the worst
famous-famouser-the famousest
hot-hotter-the hottest
beautiful-the more beautiful-the most beautiful
large-larger-the largest
practical- more practical, most practical
flat-flatter, flattest;
fresh-fresher, freshest
full-; fuller, fullest;
quick-quicker-the quickest
easy-easier, easiest;
lazy-lazier, laziest;
ugly-uglier, ugliest;
comfortable-more comfortable, most comfortable;
good-better-the best
№3
my house's parents
his sister'name
our friend' flat
the engeener's project
girls'mother
Helen's son
the students's textboks
the teacher's work
№4
1.Have
2.Had
3.Have
4.Have
5.Will have
6.Will have
№6
1.Read
2.Sleep
3.Will play
4.Went
5.Spent