Everyone wants to live in a beautiful, comfortable and “livable ” place, but not ________ know where it is.
---- My leg hurts a lot----You'd better go to the doctor and have it ____.
Mary went to the box office at lunch time, but all the tickets __________ out.
News came from the office __________ Wang Lin had been admitted to Beijing University.
Whenever I met her, __________ was very often, she greeted me with a sweet smile.
Peter was so excited __________ he received an invitation from his friend to visit them.