用所给词的适当形式填空。

l. If _____ (impossible), I want to buy a robot and let it do housework for me.

2. —Where were you when I called you yesterday morning?

    —I was in the _____ (barber) chair.

3. Yao Ming is _____ (certainly) that he will be in London for the 2012 London Olympic Games.

4. I couldn't fall _____ (sleep) last night because there was too much noise near my house.

5. I _____ (sincere) hope that you can get a good grade in this math test.

某单位会计张某与接替者王某在财务科长李某的监交下办妥了会计工作交接手续。次日，财政部门对该单位进行检查时，发现张某所记账目中有严重会计作假行为，而接替者王某并未发现这一问题。财政部门依据有关法规对该单位进行了处罚，并追究有关人员的责任。对该单位的上述违法行为应承担责任的有（）。

A、张某和王某

B、李某和王某

C、张某、李某和王某

D、单位负责人、张某和李某