We had just covered half the journey________the engine failed and we could do nothing but wait for help.
The year 1949 ________ the birth of a new country—the People’s Republic of China.
He told us whether __________ a picnic was still under discussion.
Rather than _________ at home, he always prefers ________ out to play.
I’m going to visit the factory ________ your brother worked a few years ago.
The number of people who _______ invited to the meeting _____ fifty, but a number of them _____ absent for different reasons.