The photo on _____ cover of the book may cause _____offence to some people.
She showed the visitors around the museum, the construction ________had taken more than three years.(2011·江西)
If better use is ________ of your spare time, you'll make good progress in doing your business.
The couple ________ a health centre in Cambodia,________ their seven year old son was born.
There used to be a mountain in our village, at the top of which ________.
It was along the Mississippi River ________ Mark Twain spent much of his childhood.