History is the best teacher. It ______records the development path of each country and foretells the future to us.
-- _________ you called yesterday? -- Tom.Why?
All things _________, her suggestion is of greater value than yours.
More than one student in our class _________ to Shanghai Expo.
–It’s really a pity that I didn’t see you in Shanghai. -- I _________ to see you in the hotel, but I was too busy.
_________ is known to us all is that the 2012 Olympic Games will take place in London.