They like to travel.
1. Do they like to travel?
2. Do they like to travel or to stay at home?
3. They like to travel, don`t they?
4. Don`t they like to travel?
refuse; study; speak; does Martin come...?; does it take...?
Who the teacher wants to ask this questions?
How often do your children go for a walk in this park?
When do you have lunch?
Who does his son want to be?
Where does your daughter want to study?