As is well known, the brain performs a very important _______, which controls the nerve system of the body.
I have finished a large part of the novel written by Dickens, the rest of which ___ very difficult.
___ with the increasing unemployment, many people went on strike in most of the European countries.
-Mr. Harry, we want to hear what you think about the reform being carried out in our school.-OK, I ___ to that.
I have always been honest and straightforward, and it doesn’t matter ___ I’m talking to.
Their answers are exactly the same. One of them ___ from the other.