Давай разберемся с заданием!
Тебе нужно упорядочить слова в предложениях. Давай попробуем:
You are going to Petersburg soon, what are you doing?
Возможный порядок: What are you going to do in Petersburg soon?
Why you are so hard working these days?
Возможный порядок: Why are you working so hard these days?
To buy is she going a car.
Возможный порядок: Is she going to buy a car?
Are you doing it how if you're bad service.
Возможный порядок: How are you going to do it if you have bad service?
Уверен, что ты справишься! Если возникнут вопросы, пиши.