John spent ninety yuan on the new MP4.
=John spent ninety yuan buying the new MP4.
=John paid ninety yuan for the new MP4 .
=The new MP4 cost John ninety yuan.
John spent ninety yuan on the new MP4.
=John spent ninety yuan buying the new MP4.
=John paid ninety yuan for the new MP4 .
=The new MP4 cost John ninety yuan.