同义句Betty wants to be a singer when she grows up.Betty wants to be a singer when ( ) ( )

问题描述:

同义句Betty wants to be a singer when she grows up.Betty wants to be a singer when ( ) ( )

growing up

这样子:
Betty wants to be a singer when (grown) (up).

Betty wants to be a singer when she becomes an adult.
Betty wants to be a singer when she grows up.