单项选择题A．It collapsed completely.B．It collapsed except the habitable houses.C．It determined to build houses with bricks.D．It collapsed into a pile of rubble with 3 or 4 habitable houses.

单项选择题A．They are planning to return to England.B．They are obeying the laws.C．They are not concerned about durability.D．They are interested in larger residences.