1. Mary likes to play the piano. - Мари любит играть на пианино.

Mary likes to play the piano, doesn't she? - разделительный

Does Mary like to play the piano? - общий

Does Mary or Nina like to play the piano? - альтернативный

Why does Mary like to play the piano? - специальный

Who likes to play the piano? - к подлежащему

2. They are sleeping in the bedroom. Don't bother them. - Они спят в спальне. Не беспокойте их.

They are sleeping in the bedroom, aren't they?

Are they sleeping in the bedroom?

Are they sleeping in the bedroom or in the living room?

Where are they sleeping in the bedroom?

Who is sleeping in the bedroom?

3. We have been to London this month. - Мы были в Лондоне в этом месяце.

We have been to London this month, haven't we?

Have we  been to London this month?

Have we  been to London or Moscow this month?

Where have we  been to London this month?

Who has been to London this month?

4. Alice has been waiting for her sister for half an hour. - Алиса ждала свою  сестру полчаса.

Alice has been waiting for her sister for half an hour, hasn't she?

Has Alice been waiting for her sister for half an hour?

Has Alice been waiting for her sister or brother for half an hour?

Whom has Alice been waiting for half an hour?

Who has  been waiting for her sister for half an hour?