Scientists think they have _____ in their attempt to find the causes of some major dieases.
People who live in a small village are bound to see a good _____ of each other.
He's _____ drink and never does a stroke of work.
We could see that he was trying to _____ his own responsibility for the delay, instead of accepting his fault.
Neither of them thought highly of him and they both tried to _____ him in his work.
One _____ needed when making a cake is flour; another is sugar.