对by bike划线提问应该用什么疑问词啊

1、含有by bike的肯定句子是He often goes to school by bike.对by bike提问就是How does he often go to school.

2、Do you go to school by ferry?How do you go to work?By train.By plane

3、We usually go to work by bus.How do you go to work?He often goes to work by boat.