判断下列每组单词划线部分有几种读音,分别用A、B、C、D表示.A一种B两种C三种D种

判断下列每组单词划线部分有几种读音,分别用A、B、C、D表示.A一种B两种C三种D种( )1.ham(b)urger ru(bb)er (b)lue jo(b)( )2.en(g)ineer En(g)lish son(g)book (g)love( )3.(wh)o (wh)ere (wh)at (w)right( )4.(y)ellow hurr(y) b(y) man(y)( )5.(th)eatre (th)irsty mou(th) (th)ank( )6.(n)ew stude(n)t (n)urse (n)ice