fast and ...?
fast and slow.
hard and ...?
hard and soft.
big and ...?
big and small
front and ...?
front and back.
top and ...?
top and bottom.
boy and ...?
boy and girl
laugh and ...?
laugh and cry
sweet and ...?
sweet and sour.
tall and ...?
tall and short.
happy and ...?
happy and sad.
full and ...?
full and empty.
cold and ...?
cold and hot.
closed and ...?
closed and open
go and ...?
go and stop.
up and ...?
up and down.
near and ...?
near and far.
... and small.
big and small.
day and ...?
day and night.