用单词的适当形式填空。
1. My son is ______ (terrify) of the dark. He always slept with the bedroom light on.
2. He is a ______ (fun) person. He always tells jokes to us.
3. The man is very ______ (quietly). He never talks too much.
4. She ______ (use) to have short curly hair, but now she has long straight hair.
5. Anyone interested in ______ (join) the club should contact us at the address below.
6. When I was a child, I used ______ (go) out for a picnic.
7. Be sure ______ (give) your family my regards.
8. I am afraid of ______ (take) exams. What about you?
9. His teacher asked him to practice ______ (listen) whenever he had time.
10. My father used to swim in the river when he ______ (be) in Shanghai.