英语题目,紧急！！！！

1.It is said that his mother_______the country in the war age A.died of B.died from C.died for D.died to 2.Is there anything else on___you can reply on? A.that B.which C.whom D.whose 3.He must be in the classroom,_____he? A.mustn't B.can't C.isn't D.doesn't 4.I remember the reason______he had given for not coming A.why B.that C.how D.what 请写清楚思路，原因，谢谢！！！ 5.Is this house______your father bought last year? A.that B.which C.the one D.where

1、C。为国捐躯。
2、题目有误，横线前的on应该删去。这样答案就是A。
3、C。表示推测时，助动词根据情态动词后面的动词进行变化。
4、B。定语从句引导词在从句中作give的宾语。
5、C。定语从句缺少先行词，从句引导词做bought的宾语，可以省略。