1、They go to the movies twice a month.(划线部分为 twice a month)
[How often] do they go to the movies?
2、Alice often plays table tennis after school.（划线部分为 plays table tennis）
[What does] Alice often [do] after school?
3、Tom is going to Hainan for vacation this summer.（划线部分为 to Hainan）
[Where]is Tom [going] for vacation this summer?
4、You should say sorry to your sister.（划线部分为 say sorry to your sister）
[What] [should] I [do]?
5、I am going to the mountains with my brother.（划线部分为 my brother）
[Who] [will] [you] [go] to the mountains with?