Many students ______ changes to show themselves in class because the class size is too big.

A．don't give

B．aren't given

C．haven't given

D．won't give

被保险人索赔时应注意的问题是（）。

A.在通知保险公司前可修复受损保险车辆

B.被保险人可以对第三者自行承诺赔偿金额

C.自行处理代位追偿事宜

D.索赔时不要有隐瞒事实、伪造单证、制造假案等行为