Creating better health care, education and housing for everyone is a simple idea, but ____ which is hard to put into practice.
It's quite strange that the man sleeps with his mouth ________ and his eyes________.
Are you going to the football game?— No, the tickets are ________ for me.
I’m sure that your letter will get _____ attention .They know you’re waiting for the reply.
_____ unemployment and crime are high, it can be assumed that the latter is due to the former.
The incomes of skilled workers went up. ____ , unskilled workers saw their earnings fall.