根据要求改写句子。

1. They both study very hard. (同义句转换)

    ______ ______ ______study very hard.

2. I can call her for more information. (对划线部分提问)

    ______can you call her______?

3. Mr Green has four English books. Mrs Green has six English books. (根据这两个句子完成下面的句子)

    Mr Green has______English books______ Mrs Green.

4. Steve is younger than any other boy in his class. (同义句转换)

    Steve is______ ______ ______in his class.

5. They bought the cheapest bike. (对划线部分提问)

    ______ ______did they buy?