In the UK and the US, senior high school students take part in v     1     (各种各样的) after-school activities, such as club activities and v     2     (志愿者) work. These activities not only help them gain more skills, but also teach them to care about others. After-school activities also play a part when students apply to college. However, they can take up a lot of time, so students have to learn to organise their busy s     3     (日程安排). To help them do this, some senior high schools offer courses in time management.