关于时态 刘毅单词里看到个句子Before he decided to study abroad,he has to solve financial problems. 疑问是：before从句中已经是一般过去时态了，主句是不是应该用过去完成？

问题描述

刘毅单词里看到个句子Before he decided to study abroad,he has to solve financial problems. 疑问是：before从句中已经是一般过去时态了，主句是不是应该用过去完成？

老师答疑

黎老师：

正确的句子应该是：Before he decided to study abroad, he had to solve financial problems. (had to 表示“必须”、“不得不”)