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?