Unit 11A

I can't concentrate with Sammi's (a)   chatter.

Tickets for these events will (a)   cost around thirty dollars.

They shouted for help, but nobody came to (a)   them.

Over the years we have been rather shortsighted about protecting our (a)   environment.

After traveling around the world, she (a)   teaching English as a foreign language.

Their debate (a)   a group fight.

The bird swooped down and (a)   its prey with its claws.

Environmental (a)   has increased dramatically over the past decade.

Oils are (a)   from the plants

This plastic does not (a)   and therefore remains in the environment for a very long time.