This meeting room is a non-smoking area. I would like to warn you _____ that if you smoked here you would be fined.
The young often___the old in our town.
_____a wonderful sense of humour.
—Do you think we can get there on time? —Yes,_________ the bus does not break down. A.even if .unless C.until D.so long as
It wasn’t ________ they found that there was much trouble ________ the plan.
Every minute should be _________ lessons.