Blanca is not as tall__ (a)as//(b)than)__ Paula.
Blanca is not as tall (a) as Paula.
Jorge is__(a)more stronger// (b) stronger__ than Marc.
Jorge is (a) stronger than Marc.
"Teresa" is not the__(a)shortest//(b)most short__name in class.
"Teresa" is not the (a)shortest name in class.