1. It is 2,300 kilometres from Hong Kong to Shanghai.（对划线部分提问）

 is it from Hong Kong to Shanghai?

2. We use computers to give information to the train drivers.（保持原句子的意思）

Computers are used   information to the train drivers.

3. Mother usually uses a vacuum cleanerto make the floor clean.（对划线部分提问）

  Mother use to make the floor clean?

4.The Airport Railway is also called the Airport Express.（对划线部分提问）

 the Airport Railway also called?

5. well, are, as, very, the, of, Airport, Express, the, trains,modern（连词成句）