In 1778, Bank was elected _________ president of the Royal Society, ________ position he held for 43 years.
“Dear, if you listen to me, you ______ have some candies as a reward,” the woman told her little son.
--- When will your father be back home? --- ____ twelve o’clock.
His advice made me happy, but ____.
Equipped with modern facilities, today’s libraries differ greatly from ____.
--- I hear Robert has gone to Harvard University for his master’s degree. --- Oh, how nice! Do you know when he ____?