Ответ:
Present Simple
1. My parents don't live in Washington D.C., they live in Chicago.
2. Does he speak English very well?
3. There are 50 states in the US.
4. The US has many natural attractions.
5. The Grand Canyon looks different at different times of day, and in different seasons and weather.
6. He usually goes to work by car.
Present Continuous
1. Please be quiet. I'm trying to read my book.
2. I am not using the computer at the moment so you can use it.
3. Excuse me, I am looking for a hotel. Is there one near here?
4. Are you waiting for someone?
5. What are you doing? I am cleaning my shoes.
6. It's so hot today. He isn't wearing a jacket.
Present Perfect
1. I have lost my wallet. Have you seen it anywhere?
2. I have read the magazine you lent me, but I haven't finished the book yet.
3. I have just heard the bad news. Simon has broken his leg!
4. How many articles have you written?
5. I've known Louise for ten years.
6. He has already written five stories for children.