找出下列单词画线部分发音不同的一项。
( )(1)A. man B. bag C. fat D. cake
( )(2)A. five B. fish C. thin D. six
( )(3)A. pen B. she C. hen D. ten
( )(4)A. dog B. mother C. on D. body
( )(5)A. funny B. duck C. USA D. mum