The robber told him that he had better keep silent ______ he wanted to get into troubleA.if B. unless C. otherwise

熱心網友

應該選B項。原文的意思是：搶劫者對他說，他最好保持沉默，除非他想找麻煩！A的意思是如果，B的意思是除非，C的意思是否則。所以應該選B。祝你成功！：）

熱心網友

我覺得是B

熱心網友

B.unless = if notif he didn't want to get into trouble.