It was _____ that caused him to serve dinner an hour later than usual.
The UK ________ Great Britain and Northern Ireland, is a country famous _____ its history.
He felt that he _______ the coldness that had grown between them.
You’d better not _______ these two sentences, otherwise the readers cannot fully understand you.
The manager promised to keep us _____ of how our business was going on.
—I’ m sorry. I ______ at you the other day. ---Forget it. I was a bit out of control myself.