Альтернативные вопросы это вопросы с союзом или (or) (альтернатива это выбор)
1. Is Philip Blake Mr. Blake's elder or younger son?
2. Does Philip live in a small place near London or in London?
3. Does he arrive at the office at 8.25 or at 8.45?
4. Does he often or seldom go on business to different cities?
5. Is Floy Robinson a secretary or a wife to Philip Blake?
6. Has Floy French lessons in the evening or in the morning?
7. Does the secretary or the wife make appointments for Mr. Blake?