They ( are / is / aren't / isn't) going to play tennis
aren't
A whale is _________________ than an octopus. (LONG)
longer
The girl (am / is / are) going to read a book
is
What is he doing? He is talking __________
loudly
A jellyfish is ____________________ than a turtle. (dangerous)
more dangerous
What is he doing? He is dancing ______
well / badly
What is he doing? He is walking _____
slowly
A fish is ____________________ than a whale. (colourful)
more colorful
She (am not/ isn't / aren't) going to sleep
isn't
_____ you going to eat pizza? (am / is / are)
are
What is he doing? He is running _______
quickly
A turtle is ___________________ than a squid. (pretty)
prettier