—Why did you buy so many flowers? --Because today is a special day. My parents ________ for twenty years .
The old man has two daughters, but ________ of them lives with him.
. --- Could you tell me _________ for Beijing? --- At 8:30 tomorrow morning.
The library ________ we built last year is the biggest one in Guangzhou.
Before the new year, _________ people went to visit the flower market.
--- When did you meet your English teacher? --- While I _________ a bike along Jiaomen River.