Mr White _______his racing bicycle by himself yesterday, but I’m not sure whether it is ready
It was on January, 12th, 2010 __________ a terrible earthquake struck the capital of HaiDi.
He had __________ little education that he couldn’t teach __________ little children.
The open-air celebration has been put off __________ the bad weather.
While __________ for the bus, I happened to come across my childhood friend, Tom.
__________ win the most gold medals in the 2012 Olympic Games, the Chinese athletes are busy training.