—Is David a man with good manners ?—I don’t think so . As a matter of fact , he is _____but polite .
In summer, iced sweet food is really ______ to children.
— Would you mind my challenging you to a game of chess? — ______.
______ proves that Jack is really enthusiastic and cautious.
Pro. Smith will give us a report to ______ the world present economic problems.
— The water was left running all night long. — It seemed that John ______. He was the last to do some washing.