Задайте вопрос к следующим предложением 1)ann works in her room a)yes/no b)where c)who 2)we must go now a)yes/no b)when c)who 3)there is a vase on the table a)yes/no b)where c)what

1. Ann works in her room.
Does Ann work in her room?
Where does Ann work?
Who works in the room?

2. We must go now.
Must we go now?
When must we go?
Who must go now?

3. There is a vase on the table.
Is there a vase on the table?
Where is a vase?
What is there on the table?