1. I / this book. Should I read this book? Yes, you should.
2. David / football. Should David play football? No, he shouldn't.
3. we / to bed. Should we go to bed? Yes, we should.
4. Penny / any cakes. Should Penny have any cakes? No, she shouldn't.
5. I / my brothers. Should I phone my brothers? Yes, you should.
Разъяснение:
Чтобы задать вопрос с *should*, нужно поставить *should* перед подлежащим (I, David, we, Penny).
* В отрицательных ответах используется *shouldn't*.