[     ]

A. disappeared
B. died
C. failed

1. —你受伤多久了？
    —已经两天了。
    —How long _______you_______ _______？
    —For two days.
2. 这支钢笔没法用，你可以再给我看一支吗？
    This pen doesn't_______. _______you_______showing me another one?
3. 哈尔滨有一些建筑是俄罗斯风格。
    Some of the buildings in Harbin are_______ Russian_______．
4.当人们插队时我很恼火。
    I_______ _______when people_______ _______．
5. 我应该给妈妈买什么生日礼物呢？
    What should I_______my mum_______her birthday?