复数形式为ies的单词
activity；opportunity；fly；study；buy；discovery；prosperity；possibility；responsibility；facility；theory；mystery；ability；fairy 扩展资料 动词以y结尾表示第三人称单数时,分两种情况 一、辅音字母加y结尾,去y,加ies for example ：try —>tries carry —>carries fly —> flies study—> studies...