那个声称可以帮你快速致富的投资项目其实是个骗局。

The investment program promising quick riches turned out to be a ___scam.

他假装是银行工作人员，骗走了老人所有的积蓄。

He ___scammed the old man out of his life savings by pretending to be a bank employee.

那个声称能让你一夜暴富的投资机会其实是个骗局。

That investment opportunity claiming to make you rich overnight turned out to be a ___scam.