VIII. Change the following sentences from affirmative to negative. Use the contracted form.

1. The guests pay per day.

2. I leave the key at the reception desk.

3. I want my bill ready at 8 a.m.

4. My room faces the yard.

5. She eats lunch at the cafeteria every day.

6. The receptionist speaks English very well.

7. The manager solves all the problems.

8. They live in a double room.

9. I have a letter of confirmation.

Computers in our life

The first digital computer was completed in 1944. Since that time, there have been many changes. Now computers are smaller, cheaper, and more common. There are few people who have not worked with a computer, either directly or indirectly. Banks, businesses, hospitals, universities, and airlines all use computers. Libraries also use computers to check out books.

Up until now, the computer has been used most often in business, where it was first used for accounting. This is still its most common use. It can list and remember the number of products that the business buys and sells. It can also calculate the average cost of the products in the store. It can tell the businessman when they need to buy more. Management uses it to prepare business reports and to make decisions. It can predict the future of the business so the management can use the information when it has to make important decisions.

Many banks use computers to process customers’ checks and to keep records of their money. Outside many banks, there are automatic tellers, which are computers. People use them when the bank is closed. They can deposit money, they can get cash, and they can transfer money from a savings account to a checking account and vice versa.

Computers that are used in factories to control the assembly line put together cars, airplanes, and other machines. They do jobs that are difficult, dangerous, or boring for people to do. A computer is also used to check quality in the factory because it can test products to see if they are satisfactory. Chemical companies often use computers to analyze their processes and check their products.

In the travel industry, computers are widely used to make reservations for airlines and hotels. Passengers do not have to wait days or weeks to see if there are seats on the airplanes because the computer can give them the information immediately.

Schools are beginning to use the computers more and more because it can teach many kinds of lessons. Pupils have the chance to learn at their own speed. Some pupils can work slowly, others can work quickly. The computer tells them if their answers are right or wrong. The computers can help pupils to review if they need to. One computer system that is used in education is PLATO. It teaches English!

One very important use of the computer is in word processing. A word processor is a computer that can type letters, papers, or books. It makes the

10. We always fill out the form when we check in.

1. IX. Supply “do” or “does” to complete the questions.

1. What hotel … you usually stay?

2. Why … he usually stay at this hotel?

3. What …the maid do?

4. When …the Smiths check out?

5. How much …you usually pay for your lunch?

6. What … your secretary know about this hotel?

7. How…you get there?

8. What …you think of the service?

9. How much …it cost?

10. What room …you prefer?

11. What time … she prefer to have breakfast?