Where was ____you met with the famous scientist?
The chairman thought _____ necessary to invite Professor Smith to speak at the meeting.
No progress was made in the trade talk as neither side would accept the conditions of _____.
The head office of the bank is in Beijing, but it has _____ all over the country.
He gained his by printing of famous writers.
He proved himself a true gentleman and the beauty of his _____ was seen at its best when he worked with others.