試題詳解

18. Amy wrote her first children’s book _____.
(A) while worked as a service manager in a bookstore in Nantou.
(B) while she worked a service manager in a bookstore in Nantou.
(C) while working as a service manager in a bookstore in Nantou.
(D) while she was worked as a service manager in a bookstore in Nantou.