12- Last week, I visited my grandfather. He was very pleased. He took me down to the cellar. He showed me some old things he has. To my surprise, he showed me an old computer. It was enormous with large screen. He told me that computers were very big. expensive and slow. But now. computers are small, cheap and fast. They are used everywhere: in banks, at schools, in airports and even at homes. Doctors use them to examine patients, too.

a. Answer the following questions:

1. Where does the grandfather keep the old computer ?

2. What does the underlined pronoun 'they' refer to ?

b. Choose the correct answer from a , b . c or d:

3. ……………………………….. use computers to examine patients.

a. Teachers b. Mechanics c. Nurses d. Doctors

4. 'Enormous' means …………………………….

a. tiny b. small c. large d. medium size

5. Computers are used ,……………………………… .

a. everywhere b. nowhere c. anywhere d. in banks only