Shackleton kept his promise ____he would return to Elephant Island ____the crew had been left.
The Forbidden City attracts a ________ stream of visitors every day, especially during national holidays.
Mary worked here as a ________ secretary and ended up getting a fulltime job with the company.
—Which one of these two dictionaries do you advise me to buy, Oxford or Longman? —Well, take Oxford. I think it is the ________ of the two.
Nothing that you say can change his mind, ________?
The smoggy weather has made us realize ________ terrible problems we are faced with.