Ex. 1. Complete the sentences using the appropriate derivatives of the words in brackets.
1. I had a ... with the boss about the work I was doing, so I left. (agree) 2. It's a good idea in theory, but rather ... . (practice) 3. He isn't fit for such a ... job. He's ... at making decisions. (response, hope) 4. Most people nowadays regard television as a... rather than a luxury. (necessary) 5. Having our passports stolen was a rather ... start to our holiday. (fortune) 6. I did a very stupid thing, but ... nobody saw me. (luck) 7. I like this car. It's always been very ... . (rely) 8. You are always ... . Isn't there anything that makes you happy? (misery) 9. It was a very ... experience and it took a long time to get over it. (upset) 10. The road signs were so ... that I didn't know which way to go. (confuse) 11. I'm afraid he's got very ... habits. (irritate) 12. It was only after a great deal of persistence that I got a ... answer. (satisfy) 13. It takes a lot of determination to ... in a ... business. (success, compete) 14. His arrogant attitude made him ... with the other people in the office. (popular) 15. That was a rather ... remark. You've obviously upset him. (tact)

1- an agreement, 2- practical, 3- responsible, hopeless, 4-necessity,
5- unfortunate, 6- luckily, 7- reliable, 8- miserable,
9- upsetting, 10- confusing, 11- irritating, 12- satisfying,
13- succeed, competitive, 14-unpopular, 15- tactful.