How can I make these phrases natural?
I don't have such a poor memory as you think I have.
What such thing I have done to you that you have done this to me?
I could have done the same thing you have done to me, but I haven't.
Nowadays, the only thing that governs politics is corruption, rather than ethics.
The officer instructed the visitor to wait for the commissioner.
Doing socially unacceptable things can draw unwanted attention to yourself.