If all the ducks are lined in a row, these casinos can open the doors as soon as the conditional license is received.

That's why you do your homework. It's important to have all your ducks in a row before you do something.

Kids must spend half their lives throwing things at the ducks in Regent's Park. How come he managed to pick a duck that pathetic?

I'd open doors for anyone who opens doors for me.

Persecution opens doors for more exploits

More discrimination attract more open doors and opportunities