A mango is ___________ (+/sweet) than a lemon.
SWEETER
The car is __________ (fast) than the bike. But the plane is the _________ (fast).
FASTER / THE FASTEST
She is the __________ (confident) person I've ever met.
MOST CONFIDENT
This place is ...
CROWDED
The girl is ___________ (happy) than the boy.
HAPPIER
This boy is ...
SELFISH