_____ in 2008 ___ the Olympic Games were held in Beijing.
I’m going to visit the factory ________ your brother worked a few years ago.
Rather than _________ at home, he always prefers ________ out to play.
He told us whether __________ a picnic was still under discussion.
The year 1949 ________ the birth of a new country—the People’s Republic of China.
We’re in a stage ________ it’s still too early to say who will win the most votes and become the new President.