问题
单项选择题
A．The machine isn’t working.
B．They can’t decide on a video.
C．Susan’s mother is going to use it.
D．Susan has to finish her assignment.
答案
参考答案：A
解析：[听力原文]
Why can’t they watch a video at Susan’s house
依据对话，我们得到答案“…but our video machine is broken. A项是正确选择。