I am afraid it is time we c) must leave - должен покинуть
a)покидать
b)влево
Общий: Is studying abroad really good experience?
Альтернативный: Is studying abroad really good or bad experience?
Разделительный: Studying abroad is really good experience, isn`t it?
Специальные:
К подлежащему: What is really good experience?
К обстоятельству: Where is studying really good experience?
К дополнению:What is studying abroad?
К определению: What experience is studying abroad?
Первый, так как present continius)