----- Nội dung ảnh ----- Mai and I were on a sightseeing (26) _____ about London at weekend. In the afternoon they (27) _____ from Piccadilly Circus, the busiest crossroad in London. They went up Regent Street, one of the best shopping streets, as far (28) _____ Oxford Circus. There they turned left onto Oxford Street. A little farther on the left was a small quiet street called Bond Street with the (29) _____ fashionable shops in London. Keeping along Oxford Street, they saw Marble Arch, which is over one (30) _____ years old and was first used as a gate into Hyde Park.