She had golden hair when she was a child
问题:
She had golden hair when she was a child, but_________ she got older and older; her hair went darker and darker.
A.while
B.when
C.after
D.as
She had golden hair when she was a child, but_________ she got older and older; her hair went darker and darker.
A.while
B.when
C.after
D.as