1. She spent 20 yuan on the dictionary. 
    She ________ 20 yuan for the dictionary.
2. Peter does well in Chinese.
    Peter ________ ________ ________ Chinese.
3. The old man has been dead for 10 years.
    It's 10 years ________ the old man ________.
4. Does Mary like dancing?Can you tell me?
    Can you tell me ________ Mary ________ dancing?
5. How much is it?
    What's the ________ of it?