下圖是某中學(xué)50名學(xué)生平時零用錢主要花費(fèi)方式的柱狀統(tǒng)計圖，請根據(jù)統(tǒng)計圖及所給例句完成句子（每空詞數(shù)不限）

Example：Three students spend most on others

1．Twenty students________ on snacks

2．________spend most on music．

3 Sixteen students spend most________________________．

4．________________________．