Упражнение 2 по тексту ответить на вопросы

2. Because they are too expensive for ordinary people and there are not enough doctors who can do them
3. Because they felt terribly guilty as the hadn’t had the possibility to help all the children
4. Provides free mouth surgery, provides medical equipment and trains local doctors to do the surgery themselves
5. They have done a lot of fundraising and told a lot of people about the work of Operation Smile