根据首字母或中文提示完成单词拼写，每空一词。

1. The p_______ of the words "sea" and "see" is the same.

2. After a hard-working day, the man was so tired and s______ that he fell asleep very soon.

3. Martin used to be a problem student, because he c______ a lot of trouble.

4. Don't w________anyghing, especially time.

5. He isn't old enough to get a driver's l_______.

6. Don't tell others. It's a _______ (秘密) between you and me.

7. Henry's grandfather is ________ (知识渊博). He often helps Henry with his lessons.

8. The books are all on those________. (架子)

9. He is busy doing ________ (医疗的) research in the hospital.

10. Work hard and never give up, you're sure to _______ (成功) one day.