Washingthefooddownwithwaterasasubstitute________chewingisnotagoodhabit
严复翻译的《天演论》，其原文的题目是（）
TheToriesweretheforerunnersof________,whichstillbearsthisnicknametoday
Idiomsnominalinnaturehavea(n)______asthekeywordineachandfunctionasanouninsentences.
Ifanearthquakeoccurred，someoftheone-storeyhouses________.
