Rewrite using comparatives

Gap-fill exercise
By Juan Ignacio Montorio

Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!

Maria isn't as friendly as Susan.
Susan .
He isn't as tall as his brother.
His brother .
History is not as difficult as Maths.
Maths .
Real Madrid is not as good as Real Zaragoza.
Real Zaragoza .
Watching TV is not as important as doing homework.
Doing homework .
My sister and my brother are not as happy as me.
I .
I am not as fat as Obelix.
Obelix .
Madrid is not as big as London.
London .