用所给词的适当形式填空。
1. Mary would like _______ (clean) the windows.
2. There are lots of _______ (potato) over there.
3. Which is _______ (expensive) of the two?
4. He went to buy some _______ (supply) yesterday.
5. _______ in the sun is bad for your eyes. (read)
6. Jimmy is the _______ boy in our class. (fat)
7. Look, the door is _______ (close)
8. I have been _______(stand) on one foot for one minute.