The electricity was cut off while the film（ ）.
A、
was shown
B、
was to show
C、
was showing
D、
was being shown
【正确答案】：D
【题目解析】：
while这里指两者同时进行，film和show之间是被动关系，电影为被放映，所以应该选D。句意：电影放映时停电了。
The electricity was cut off while the film（ ）.
The electricity was cut off while the film（ ）.
was shown
was to show
was showing
was being shown
while这里指两者同时进行，film和show之间是被动关系，电影为被放映，所以应该选D。句意：电影放映时停电了。