It is a common ____ to have a cake with candles to celebrate a holiday ,birthday or any other occasion.
Mr. Smith is always on time for everything. How ________ it be that he was late for the flight?
the newspaper carefully ,and we’ll find different types of articles on the pages
to advertisements constantly can help to change people’s opinions over time
-May I trouble you with the question? -Sorry, but it is______ my knowledge.
You can never be_____ careful ; the road is icy and slippery.