1 . She was taking the food to the refugee camp, in _________she distributed it to the children. (用适当的词填空)

2 . People sit uncomfortably on plastic chairs, reading old magazines, all of ______ have been read hundreds of times previously. （用适当的词填空）

3 . Many young people, most of ________ were college graduates ,headed for remote areas to chase their dreams. （用适当的词填空）