TOEFL Listening: TPO-TOEFL听力TPO - 7N31CO_T1TUO2R_9R$

What was typical of theatrical productions in the United States before the 1860s? A. The productions originated outside of the United States. B. Only a limited segment of society attended the productions. C. People attended the productions because they were interested in the plots. D. The themes of the productions were typically related to the upper class.