What prevented your plan ?
We have every reason to believe that ______ 2012 Olympic Games in London will be ______ success.
---Oh dear! I’ve just broken a glass. --- Never mind. _____.
Those natives who _________ move from place to place with their animals in the past have moved into new houses at last.
— Have you ever visited the Opera House?—Yes.When I was in Sydney, I ______ it twice.
The traffic accident _________all his life. After that he was limited to a wheelchair.