用所给词的适当形式填空

1.UNICEF raises money by _____ (sell) Christmas cards and _____ (organize) other fund-raising activities.

2.Mike is willing to share his _____ (happy) with his friends.

3.Most girls are afraid of _____ (go) alone at night.

4.Uncle Tom used to _____ (grow) vegetables to make a living.

5.The most important thing for us is _____ (study) hard.

6.I think he is used to _____ (climb) the hill in the early morning.

7.She always helps people and people are always _____ (grate) to her.

8.UNICEF provides clean water, food and _____ (educate) to poor children.