1 Is he an English teacher?
2.who often helps you?
3.how many books does he have in his study
4.are you good at English or french?
5.Must you go now?
第2题是说Tom 经常帮我们,人名画线就是问,谁经常帮我们?英文翻译就是上面那个
第4题给的是法语,和句中英语并列,两者是选择关系,选择疑问句就是问你是擅长英语还是法语,英文如上所示
第5题改法和第1题类似,一般疑问句的改法都是把动词提前到主语前头,后面的词语序不变,无论是情态动词还是be动词都是一样的,中文译为你一定要走么?
希望回答得比较详细,