1. I went to Hefei yesterday. (改为一般疑问句) 
   ______ you ______ to Hefei yesterday?
2. The weather was very bad. (改为否定句)
    The weather ______ ______ very bad.
3. The girls had a good time on the school trip. (改为同义句)
    The girls ______ ______ on the school trip.
4. The science teacher cleaned the bus yesterday afternoon. (对画线部分提问) 
    ______ ______ the science teacher ______ yesterday afternoon?
5. Tina got Jack Dean's autograph. (对画线部分提问) 
   ______ autograph ______ Tina ______?