Question

【题目】The lady must be in her (thirty) by now, but she still looks young

Answer 1

【答案】thirties
【解析】句意：这位女士现在一定三十多岁了，但是她还看起来很年轻。in one's+整十的复数，表示在某人几十多岁的时候。根据句意及所给单词提示，故填thirties。