七岁的男孩，眼睑水肿4天，伴头痛、眼花，尿呈深茶色2天就诊，2周前曾患扁桃体炎，经用青霉素治疗好转。

如果此患儿血压急剧增高，出现惊厥，首选的处理是（）

A.强力利尿剂

B.硝苯地平口服

C.硝普钠静滴

D.快速洋地黄化

E.口服复方降压片

—What a pity! You should have urged him to hand in his English homework.

—I _______. But he wouldn’t listen to me.

A．have done

B．did

C．had done

D．do