句型转换。

1. It was Wednesday yesterday. (对画线部分提问)

                                 was it yesterday?

2. He was a doctor 10 years ago. (对画线部分提问)

                                 he 10 years ago?

3. I was at the birthday party last night. (对画线部分提问)

                                 at the birthday party last night?

4. Five years later,he became a teacher. (对画线部分提问)

                                 he              a teacher?

5. The space flight lasted 15 hours. (对画线部分提问)

                                                the space flight              ?