Energy, passion and a burning desire are, you see, ________ true learning takes.
------I’m worrying about my coming examination. ------Well, you will succeed in the end _______ you work with a strong will.
The magazine I like best _________ once a month.
With the old man ______ the way, we had no trouble in finding the village.
I am ______by the beautiful scenery in the countryside.
They own a restaurant in Shanghai ________ a store in Hangzhou.