One day Mary was busy working in her office in London when she received an E-mail from her friend Joan .In Joan’s e-mail, she persuaded Mary ______( look) for a flat in London for her. As she had _____ (little) money at her command than before, the flat had to be cheap, but it had to be modern, with elevators, gas lines. It had to be in the ______ (east) part of London, with petrol and subway stations nearby. Though Mary found ______difficult to find such a flat, she still went from one block to another, looking for a flat _______would meet Joan’s requirements. Having tried too many times, Mary came up ______her boss and politely asked him _____advice. It was the first time that she ___________ (talk) with his boss about her personal problems. It happened that the boss just had such a flat for rent, so they quickly reached ____agreement. But to her surprise, when she e-mailed Joan, telling her the good news, Joan said that she had changed ____ mind--- she was not returning to London.