PEOPLE SING BECAUSE ... . A. THEY FEEL HAPPY. B. THEY ARE GOOD AT...
21. People sing because ... .
A. they feel happy.
B. they are good at singing
C. they want to tell a story.
D. they know many songs.
21. People sing because ... .
A. they feel happy.
B. they are good at singing
C. they want to tell a story.
D. they know many songs.