用所给单词的适当形式填空.
1. Where _____ Jim _____ (buy) the computer?
2. Beijing is a _____ (center) city of China.
3. The story is _____ (real) interesting?
4. Do they want _____ (go) to the mountains?
5. We _____ (go) _____ (camp) in the mountains last summer vacation.
1. did, buy 2. central 3. really 4. to go 5. went camping