We are leavingfor Shanghai for a week this afternoon. _________

I used to inTibet , but now I am used toinBeijing.

The new railway winds its way to Hong Kong, _____Mountains _____ tunnels and _____ rivers[ ]

HeiLihe(黑里河) is west of DaMing（大明）and it is also the west of NingCheng.

Bill’s mother wants him ______milk every day .