根据图片提示,用词汇的适当形式完成下列句子。
1. —My sister was a ________ before.

—What did she ________?
—She ________ a bus.
2. My mother was a flute ________.

3. My sister works in an ________.

4. That’s my brother. He ________ ________.

5. —What did he do before?

—He was a doctor. He ________ in a hospital.