Решение:
- Andrew spent his holidays in Montenegro.
- They (to go) went cycling last Saturday.
- She doesn't have much time for her money for clothes last Friday, but now she saves it because when she was a schoolboy, she didn't have much money.
- They (to go) went for a picnic for picnics when they were young, but now she is a vegetarian.
Ответ: 1. spent; 2. went; 3. didn't have; 4. went.