Mr. Clark was a very busy man. He always worked hard. He often forgot his family's birthdays.Yesterday afternoon, he remembered it was Mrs. Clark, his wife's birthday.  He loved his wife. He wanted to give her a gift. On his way home from his hospital he bought some nice flowers in a shop. When Mr. Clark got home, he gave his wife the flowers and said," Happy birthday to you, dear! It's September 28thtoday. I remembered your birthday this year." Mrs. Clark laughed and said ," My birthday was the day before yesterday. But thank you all the same. Better later than never!" Mr. Clark was  _  .
a teacher a farmer an office worker a doctor