选词填空。 

1. This dress ____ (is, are) pretty.

2. We'll take ____ (it, its).         

3. How much ____ (is, are) those big shoes?

4. Look ____ (at, for) that dress.

5. It fits ____ (I, me) well.

在过去，人力资源费一般不超过政府资助经费的15%。