1. There were some actors at the aquarium. (改为一般疑问句) 
    ________ there ________ actors at the aquarium?
2. Tina went to the zoo. (改为一般疑问句)
    ________ Tina ________ to the zoo?
3. Grace bought a souvenir. (对划线部分提问)
    ________ did Grace ________?
4. Did your father see any seals? (作否定回答)
    No, ________ ________.
5. Jake often goes swimming. (以last year为状语改写句子)
    Jake often ________ swimming ______ year.