No gain without pain. Adjectives, degrees of comparison

Tongue twisters
Roberta ran rings around the Roman ruins.
Seven slick slimy snakes slowly sliding southward

Riddle
Do you know what word becomes shorter if you add two letters to it? You think there is no answer to that question. Can you make a word shorter if you add two letters to it? You are sure, you can't. But you can.

Add er to the word short. It becomes shorter.

Adjectives.
degrees of comparison

plural nouns

The topic is revision of degrees of comparison and plural nouns