找出每组单词中元音字母发音与众不同的单词
1.apple bag face cat hat (元音字母是a)
2.we she pen me be (元音字母是e)
3.fish milk pig window five (元音字母是i)
4.orange nose dog box lock (元音字母是o)
5.music duck umbrella cup bus (元音字母是u)