25.In the conference room on the fifth floor, where a meeting_________, some students were busily setting the chairs.
He was elected______ president of the company, and _____news came ,in fact, as ______surprise.
--- Will you read me a story , Mummy? --- Ok. You ____ have one if you go to bed as soon as possible
_______ in the war, many children have become orphans(孤儿).
Hard _____ he tried, he failed to catch up with the first runner.
--- Are you going to Tom’s birthday party? --- _____. I might have to work.