We won't keep winning games_____ we keep playing well.

We won't keep winning games_____ we keep playing well.


A、because
B、unless
C、when
D、while
【正确答案】：B
【题目解析】：本题考查连词辨析。句意：除非我们继续打好比赛，否则我们不会一直保持比赛的胜利。unless引导条件状语从句，意为“除非，如果不”。because引导原因状语从句；when，while引导时间状语从句。