—It's the office!So you ________ know eating is not allowed here.—Oh,sorry.
It was ____ that he had to ask for help.
Pierre Curie stopped his research and _______ Marie in the search of an unknown material.
The ________ expression on her face suggested she was _______ when she heard the news.
I hope we can do business together, and I’m looking forward with great interest _________ your call.
There’s only ten minutes to go. We can’t wait any more---- ______, we should start at once.