Ronald Amundsen is considered to be one of the greatest ________ in history because he was the first man to reach the South Pole (南极).
_________, he had to escape to the USA because a war ________.
We never doubt _______ this museum is worth _____.
—I wonder when you _______ in London. —I will send an e-mail to you as soon as I _______there.
— Which of these two dresses _______, the pink one or the red one, Madam? — Neither, thanks. I _______ take a look at a light green one.
––Excuse me, could you tell me _______? ––Sorry, I don’t know. I’m new here, too.