This printer is of good quality. If it _______ break down within the first year, we would repair it at our expense.
_______ she couldn’t understand was ______ fewer and fewer students showed interest in her lessons.
It is pretty well understood _______ controls the flow of carbon dioxide in and out the atmosphere today.
“What were you trying to prove to the police?” “___ I was last night.”
. Patience is a kind of quality — and that is ___A___ it takes to do anything well.
They lost their way in the forest, and _______ made matters worse was that night began to fall.