Решение:
Чтобы преобразовать утвердительное предложение в вопросительное, нужно поменять местами глагол 'to be' (is/are) и подлежащее (местоимение).
- Is he Chuckles?
- Is she Lulu?
- Are they in the kitchen?
- Is it a door?
- Are we in the tree house?
- Am I in the bathroom?
- Are you boys?
- Is it my orange juice?
- Are they girls?
- Are we on the birthday party?