Comparative and superlative

Mike is ......... than Fred.

You have to be ......... careful when working with power tools.

Your brother is ......... than you. So, please listen to him when we're not here.

Meg is the ......... person I know. She's a very positive person.

She's the ......... girl in the room.

The trains in South Korea are ......... than the ones in North America.

That is the scariest movie ......... the year.

I think Mount Everest is the highest mountain ......... the world.

This is the most stressful time ......... the month.

This teacher is very ...... However, last year, I had the worst teacher ever!