Open the brackets:

I'm exhausted. I (work) all day.

I (not finished) my homework yet.

You look so tired! What (do)?

Anna has gone to the doctor. She (feel) ill lately.

Where are you? We (wait) for 2 hours!

Write a short essay about Acid Rain. In your essay include:

-What acid rain is

-What causes it

-What effects it has

-What can we do