q：what contribution did you make to your current (previous) organization?
你對目前/從前的工作單位有何貢獻?
a：i have finished three new projects, and i am sure i can apply my experience to this position.
我已經完成三個新項目，我相信我能將我的經驗用在這份工作上。
q：what do you think you are worth to us?
你怎么認為你對我們有價值呢?
a：i feel i can make some positive contributions to your company in the future.
我覺得我對貴公司能做些積極性的貢獻。