We had to walk home that night, tired , on account of , to our disappointment, __________.
Claire had her luggage ________ an hour before her plane left.
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.