25．In the conference room on the fifth floor, where a meeting_________, some students were busily setting the chairs

_______ made the school proud was______ more than 90% of the students had been admitted to key universities.

History is _______ a subject which only lets us know something in history

Thanks to the success of the business, we can ____ a flat this year.[ ]

Experiments of this kindin both the U．S．and Europe well before the Second World War