In order to promote its brand, Harvard University has put a lot of money and time to launch an advertising ________.
—I am leaving for the States tomorrow, Caroline!—______
As we all know, many Chinese words have come into English, _____ typhoon, tofu and kung fu.
If better use is _______ of your spare time, you’ll make great progress in your study.
A number of books in the library ___been stolen so that the number of them___ smaller than before.
My grandfather, who the World War Two, likes to talk to us about his experience.