3 Read the text again and answer the questions. 1 Where does the word "per cent come from? 2 Who first used the numbers 0-97 3 Why do we use percentages? 4 What percentage is the whole' equal to? 5 What is the whole in the example with cakes? 6 What do we multiply the fraction by to get the final percentage?
2. The machine needs cleaning… (to clean).
3. She is angry at … for sending (to send). ???
4. You should avoid breaking… rules (to break).
5. She entered the office without noticing… (to notice).
6. I am sorry for …disturbing you (to disturb).
7. We can’t excuse their not …answering our invitation (to answer).
8. The cat was punished for …breaking the cup (to break)
9. The cat was afraid of punishment (punishing)… and hid itself under the sofa. (to punish).
10. After looking… through and marking… the student’s papers, the teacher handed them back. (to look),(to mark).