23.Robert made a call to his parents yesterday afternoon. To his disappointment, ____of them answered it.
Don’t worry about the present situation in the world;_____of people prefer peace to war.
The patient’s son asked the doctor the question________his father could survive the big operation.
The children went home from the grammar school,with their lessons ____for the day.
At the railway station,the mother waved goodbye to her daughter until the train was________.
is not yet decided.