代替，而不是____________7.坍塌，倒塌____________8.挖掘____________9.burst_________10.directly____________11.survivor__________12.rescue____________13.sheiter____________14.breathe___________ 15.crack______ ●句式构建 1． in the farm yard，the chickens and even the pigs were_________________(太紧张不吃东西)． 2._______
