A-A+
A．They were silent.B．They didn' t tell a compl
问题详情
A．They were silent.
B．They didn" t tell a complete story.
C．They were too expensive.
D．They were too short.
参考答案
正确答案：A
解析：文中提到“In 1927 sound was added to the previously silent film．”由此可知，选项D是正确的。
