—How much salt did you put in the soup ? — I’m sorry to say , _______ . I forgot .
Mary couldn’t________ the terrible working conditions in that factory and resigned last week.
Some passers-by witnessed the car accident ______ five passengers were killed, a baby included.
— Why do you do volunteer work in the North—West?— I_____ to improve the lives of the children there through my efforts.
I send you my revised catalogue and price list, ______ you may find something that suits you.
Under the new schedule, teachers of primary and secondary schools must _____each class on time instead of adding extra lessons.