1. ________ one of you breaks the window will have to pay for it.

    A. Whoever       B. No matter which   C. No matter who       D. Whichever

2. The cost of renting a house in central Xi’an is higher than ______ in any other    

  area of the city.

  A. that           B. this              C. it                 D. one 

3. Where to hold the 2012 Olympic Games was a subject ____________ the Olympic   

Committee argued for a long time, and finally they voted for London.

  A. about which    B. with which        C. of which           D. into which