【简答题】找出下列英语句子中的屈折词缀。（The study) Have you eaten yet？ Do you know how long

【简答题】找出下列英语句子中的屈折词缀。(The study) Have you eaten yet？ Do you know how long I’ve been waiting？ She’s younger than me and always dressed in the latest style. We looked through my grandmother’s old photo albums. My parents’ parents were all froom Scotland.