Change the forms of the following sentences. 句型转换。
1. Running is exercise.（对画线部分进行提问）
2. Twenty-four hours make a day.（对画线部分进行提问）
3. Is here any good food?（变为陈述句）
4. I never eat vegetables.（对画线部分进行提问）
5. The melon is here.（对画线部分进行提问）
1. What is exercise?
2. How many hours make a day?
3. Here is some good food.
4. How often do you eat vegetables?
5. Where is the melon?