Use the correct form of the following words to fill in the blanks. comedy amusing joke sound happiness led record laughter researcher situation 1. Do you hear that ______ ? I think it's the phone ringing. 2. I ____ _____ today's lecture so I can listen to it again. 3. The ____ ______ are studying the effects of laughter. 4. My favorite TV show is a ______. It's very funny. 5. When I hear his ______ , I smile. I know he's happy. 6. My professor ______ a study about exercise. His team looked at exercise and weight. 7. Sad ______ sometimes make me cry. 8. Did you read this story? It's very ______ . I laughed a lot. 9. Good friends can add to your ______ . 10. I told a(n) ______ about an elephant and a bear. Everyone laughed.