问题描述：
问几个英语句子的语法问题~
1.Almost half of （them） have at least one part-time job.为什么要填写them?
2.Works three evenings a week （as） a pizza cook.为什么要填写as?
3.Textbook prices are （traditionaly） high.为什么traditional要加y?
4.I think is is important （to make） life a little easier and a lot cheaper for his students by （writing） his own book on public speaking.为什么make前要加to?为什么write要加ing?
1.Almost half of （them） have at least one part-time job.为什么要填写them?
2.Works three evenings a week （as） a pizza cook.为什么要填写as?
3.Textbook prices are （traditionaly） high.为什么traditional要加y?
4.I think is is important （to make） life a little easier and a lot cheaper for his students by （writing） his own book on public speaking.为什么make前要加to?为什么write要加ing?
问题解答：
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