用所给词的适当形式填空。
1. There are many new ( build) in our city.
2. We can do the work with (little) money and ( few) people than they can.
3. There are ( hundred) of people on the ground.
4. She wants to be a (science) when she grows up.
5. I can do my homework by (I).
6. Today is Sunday. Let's go ( skate) .
7. Please buy some ( toothbrush) for them.
