Between the two parts of the concert is an interval, _______ the audience can buy ice-cream.
The education of _______young is always _______ hot and serious topic in modern society.
Accustomed to ______ the steep mountain, he had no difficulty reaching the top.
The head office of the bank is in Beijing, but it has ___ all over the country.
“ Have you visited the Science Museum?” “ No, but I really wish I ___.”
You _________to the meeting yesterday. What was the reason for your absence?