Other things_____, most students would prefer single to shared r

Other things_____, most students would prefer single to shared rooms.
A、be equal
B、being equal
C、to be equal
D、having been equal
【正确答案】：B
【题目解析】：答案选B。题干大意：其他条件相同的情况下，他们宁愿单住，也不愿意共用房间。other things being equal（其他条件相同的情况下）是一个独立主格结构。