分类：教育/科学-外语学习-英语考试
问题：我英语菜,请教大家一D题目IfI_______youngagai 
If I _______young again ,I would study harder. A am B were  were to be D should be______he come late,give him the message.A Had B Should C Would D Did 
回答：1.young明显系不可实现既，所以首先选虚拟语态，排除AD，之后考虑语义，系指“如果我再一次年轻……”
即对将来的希望，所以用be to do表将来时。综上所述，选C
2。should前置的虚拟语态，即if he should come late……对将来事件的猜测

呢两句其实都系考虚拟语态将来时用法