Решение:
Чтобы поставить предложение в вопросительную форму, нужно вспомогательный глагол 'to be' (am, is, are) поставить перед подлежащим.
- Is Jane opening the window?
- Is Bess cleaning her teeth?
- Is my father reading a newspaper?
- Is the cat drinking its milk?
- Is the dog eating some meat?
- Are we walking in the park?
- Are you having dinner?
- Are they looking at the boy?