The poem did not have an appropriate ending, she would have won the petition.
A. because
B. or
C. but
D. and
网友回答
A. because
(答案→)B. or
C. but
D. and
解析：句意：那首诗的结尾不好，要不然的话，她将赢了这场比赛了。Because因为； or或者，要不然的话； but但是； and和。这里是虚拟语气，前面一句是叙述的事实，，如果不是事实上的情况就会怎样，所以后面的是虚拟语气，从第二句的谓语动词来看，也能看出是虚拟语气，所以用or，故选B。