按要求做题。    

1. It seems that Polar Bears are gentle animals. (同义句)       

    Polar Bears seems ____                   gentle animals.    

2. I am like this animal because I am strong and intelligent.  (对划线部分提问)       

                are you             this animal?     

3. The bridge was built last year. This photo was taken there. (合并成定语从句)       

    The bridge___      this photo was taken             _____ last year.    

4. The question isn’t easy enough for them to answer. (改为复舍句)   

    The question is             _____ _____ they             answer it.    

5. I really don’t know which sweater I should buy. (改为简单句)      

    I really don’t know ______ ______  to______.