Write the correct form of the word to fill in the blanks in the following sentences: 1. He is so sad because the film ended........( happy) 2. A(n) .........man has stolen all your money.(know) 3. You should...........your English vocabulary every day.(rich) 4. She is so busy with.........activities that she has not time for entertainment.(society) 5. The increase in population has led to .............in many cities.(crowd) 6. I found your performance last night.............interesting.(surprise) 7. If you have a burn, quickly put the............part under a running a cold tap.(affect) 8. How many................entered the race? 9. With a good ...................of the criminal from witnesses, the police were able to find him easily.(describe) 10. If you can give a reasonable...............for your bad behavior last night, I'll forgive you.(explain)