5. 1.Can I pay by credit card, please? 2.Can I borrow some money, please? 3.Can I have a receipt, please? 4.Can I pay by check, please? 5.Can I open a bank account, please? They don’t take credit cards. He spent the money he borrowed. He didn’t sign the check. He can’t find the receipt.

6. It will be great. We’ll/we won’t use money. We’ll/we won’t pay for things electronically. We’ll/we won’t buy everything online. We’ll/we won’t write letters. We’ll/we won’t send e-mails. We’ll/we won’t work from home.

7. Will we …..

8. What will the Future be like? In the future, I don’t think people will use cash, check, or even credit cards. Instead, we’ll just use our fingerprints. When we are born, we will get a bank account. We will have the same account for our whole life, and it will be connected to our fingerprints. Everyone will have fingerprint recognition devices. So instead of scanning credit cards, we’ll scan fingers. Life will be so much easier when we don’t have to carry around money or credit cards - Jason, Alaska Will we have cars in the future? Yes, I think we will, but they’ll be very different from today’s cars. First, they won’t use gas because we won’t have enough of it 50 years from now. Cars will probably use electricity or hydrogen, so they’ll be quieter and cleaner. And I think the roads will be safer, too, because you won’t actually drive your car. You’ll just sit in it, and the car’s computer will drive it. So there won’t be any accidents. - Flavia, Brazil I don’t think the world will be a safer place in the future. I think it will be more dangerous-because of diseases. People travel a lot now, so diseases move very quickly from place to place. In the future, they’ll be able to travel even faster and more cheaply because planes will be better. Sooner or later, a new and very dangerous disease will appear. It will move quickly from one continent to another, and millions of people will die. - Juan, Mexico

9. people bank account cars gas the world people I think/don’t think we will drive cars. I think/don’t think the world will be more dangerous. I think/don’t think computers will do everything for us. I think/don’t cars will use electricity. I think/don’t think global warming will destroy the earth.

14. Melanie factory Anna bank Ryan Cindy cost afford slow money price broke

15. √ √ √ √ √ √

17. 1.It can carry things and guide people to destinations. 2.It uses sound waves like a bat. 3.In the future, it will flight fires and clean up toxic chemicals.