分类：教育/科学-升学入学-高考
问题：时态题
---look!I am all wet.It is raining hard now.---I ____ you to ta an umbrella when you left.A.tell   B.told    C.have told    D.had told请给我详细解释，谢谢。
回答：B is right. because "when you left "has indicated the past time,so we should use the past indefinite tense.