(2013·北京，35)—You needn’t take an umbrella.It isn’t going to rain.—Well, I don’t know.It________do.

go through this book, you ________ that each of the millions of people who lived through World War II had a different experience.

In the old days, some wealthy people killed animals just for the ______ of it.

To _______ good relationships with your teachers and classmates, you should learn to be on good terms with them. [ ]

All the students in our class are working hard every day, and the result _____ to be good in the coming examination.