He became an ice skating champion when he was ________.

1. A.
   twelve years
2. B.
   twelve-year-old
3. C.
   twelve-years-old
4. D.
   twelve years old

 He became famous for his novels.

A. rich        B. good        C. happy       D. well-known

______ he became seriously ill, he still went on working.

John became a football coach in the Sealion Middle School ____ the beginning of March.