The cat is (a)  

Homer is (a)  

He is (a)  

The frog is (a)  

He is (a)  

Bob is (a)  

Eating in a restaurant is (a)   than eating at a snack bar. (expensive)

Tokyo is (a)   than Rio de Janeiro. (large)

The Empire State Building is (a)   than the Eiffel Tower. (tall)

Rachel plays the piano (a)   than Alexa. (bad)

Rob is the (a)   boy in the class. (funny)

That child is the (a)   person in this movie theater. (noisy)

I'm the (a)   singer in the talent show. (good)

Medellin is the (a)   city in Colombia. (interesting)