判断下列各组单词的画线部分有几种发音。(10分)
A.一种 B.两种 C.三种
( )(1)A.cub B.put C.student
( )(2)A.swim B.pig C.kite
( )(3)A.what B.happy C.make
( )(4)A.horse B.short C.for
( )(5)A.brown B.how C.yellow