用once和unless造句once一旦,和unless除非,各造三个句子时态要对在线等!
问题描述：
用once和unless造句
once一旦,和unless除非,各造三个句子时态要对在线等!
答
once一旦He will not be swerved from his course once his mind 's made up.一旦他已下定决心,就无法改变.No one could turn him from his purpose once he had made up his mind.他一旦下定决心,没有人能使他改变...