It is clear that the whole world is passing through a social revolution in which a central _____ must be taken by scientists and technologists.
I walked in our garden, ________Tom and Jim were tying a big sign onto one of the trees.
The study was carried out in one small town so we can’t be sure that the results are truly ________.
Smell is to the nose_______ taste is to the tongue.
If Joe’s wife won’t go to the party, ________.
A well-written composition ________ good choice of words and clear organization among other things.