3. Writing. Now let's practice your grammar of using Simple Present or Simple Past. Complete the sentences using the correct tense of the verb in parentheses. Use either the simple present or the simple past. created by black Americans. to grow and change. more and more popular. and different cach time it is played. Jazz Today, jaz Jazz The black slaves the music of their homeland. A jazz song Today, people from all over the world Jazz jazz a mixture of different kinds of music.