1 jane can with further than i can
⇒ i can't...............................................
2 my sister can't cook as well as my mother does
my mother can.........................................
3 i don't play tennis as well as my brother does
my brother..........................
4 apples are usually cheaper than oranges
apples are not.................................
5 cats can't swim as well as dogs can
dogs can............................
6 the dress is cheaper than oranges
the dress is not.....................
7 peter is the tallest boy in his class
no one........................
8 nobody in the class is cleverer than sally
sally is........................................
9 have you got a cheaper carpet than his?
is this....................................
10 they understand more than we do
we don't .............................
11 tom is the best football played in this team
nobody..................................
12 nothing is faster than the speed of light
the speed of light..............................................
13 his mother is taller than his father
his father is not.........................................
14 she's a faster and more careless driver than i am
she drives...........................................
15 jane is a better cook than robert
robert can't.....................................