Mary has _______ a difficult question to me.
For some time now, world leaders _____ out the necessity for agreement on climate change, the world economy and African development.
Though it is 30 years ____ we last met, I still remember the scene _____ we got separated on a rainy day.
The fellow left without a word as if ________.
His sacrifices for the country were never officially _____, which made all of us feel discouraged.
What a pity! I missed meeting my friend at the airport because my car was _____ in the traffic jam.