问题描述：
请将下面的单词按正确的发音归类.
stpots rooms looks cars brushes maps walls watches oranges pens boxes trips bags buses cakes
/s/:________________________
/z/:________________________
/iz/:________________________
stpots rooms looks cars brushes maps walls watches oranges pens boxes trips bags buses cakes
/s/:________________________
/z/:________________________
/iz/:________________________
问题解答：
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