---How many people will come to Beijing next year?---It’s hard to say. people ,I think.
________ city would you like to live in, Beijing,Shanghai or Chongqing?
If prices rise too high, the government has to do something ______ it.
— How long have you _______ this book? — About ten days.I _______ it last month.
— When will the second class begin? — _________ two minutes.
— I’m sorry I can’t find the library book anywhere. — So…I’m afraid you have to _________ it.