名师预测
1． Besides the content of a book, ________ the editor also cares about is the number of readers.
A．who B．why
C．how D．what
2． The organizers promise ________ wins the first prize a chance to go abroad.
A．who B．whom
C．whoever D．whomever
3． Mary is a humorous and warmhearted woman and that is ________ she is a most popular person in her community.
A．whether B．because
C．how D．why
4．________ she was invited to the ball made her very happy.
A．Whether B．That
