A grapefruit is one of ...
the sourest / biggest /juiciest /etc fruits.
Pat speaks (quick)
quickly
The (hard)... you study, the (good) you'll do.
harder, better
my apartment / large / yours
My apartment is as large as yours.
My apartment isn't as large as yours.
morning / warm / afternoon
Morning is less warm than afternoon.
Morning is not as warm as afternoon.
A cheetah is the .... of all.
fastest / speediest / quickest / etc
Roger speaks (quick)... Pat.
more quickly than
Because she was late, she walked (fast)...
faster and faster.
biology / interesting / history
Biology is as interesting as history.
Biology isn't as interesting as history.
house / tall / skyscraper
A house is less tall than a skyscraper.
A house is not as tall as a skyscraper.
of all / lion / powerful
A lion is the most powerful animal of all.
Charles is (safe)... driver of all.
the safest
As the fire truck came closer, the siren became (loud)...
louder and louder.
Tia is 30.
Amira is 28.
Amira is not quite as old as Tia.
Amira is nearly as old as Tia.
my old shoes / comfortable / new shoes
My old shoes are less comfortable than my new shoes.
My old shoes are not as comfortable as my new shoes.
in / Austin / expensive
Austin is the most expensive city in Texas.
London is ... north than Madrid.
farther/further
The (sharp)... the knife, the (easy)... it is to cut with.
sharper, easier
Jasmine is 10.
Emily is 50.
Jasmine is not nearly as old as Emily.
grammar / difficult / spelling
Grammar is less difficult than spelling.
Grammar is not as difficult as spelling.
One of / boxing / dangerous
Boxing is one of the most dangerous sports.
If you have any .... questions, don't hesitate to ask.
further
She drove fast. I became nervous.
The faster she drove, the more nervous I became.
Niki is 19.
Emilio is 19.
Niki is as old as Emilio.
Niki is just as old as Emilio.
Batman / popular / Superman
Batman is less popular than Superman.
Batman is not as popular as Superman.