We haven’t settled the question of __________ it is necessary for him to study abroad.
The teacher,with 6 girls and 8 boys of her class,_____ visiting a museum when the earthquake struck.
She has set a new record,that is,the sales of her latest book _____ 50 million.
It _____ that he was late for the train.
His mother _____ teacher.
His father _____ that older than he really is.