Put the verbs in brackets in the correct tense (active or passive The history of the hamburger The hamburger is the most eaten food in the whole world. The first hamburger (1) (make) ................ and sold in 1895 by an American chef called Louis Lassen . Louis (2) (call) ................ them Hamburgers because he (3) (give) .................... the recipe by sailors from Hamburg in Germany . Hamburgers (4) (become) ................ a favorite in America in the early part of the twentieth century . Their popularity (5) (grow) .............. even more after the second world war , when they (6) (buy ) ................ in large quantities by teenagers who (7) (prefer) ............... fast food to family meal. In 1918 two brothers Dick and Mac Mc Donald (8) (open) ............. a drive- in Hamburger restaurant in San Bernardino , California . Since then over 25.000 Mc Donald's restaurant (9) (open) ............... everyday in 115 countries from India to the artic Circle.