1. I need one apple. (改为一般疑问句)
    ______ you ______ one apple?
2. They need yogurt. (改为否定句)
    They ______ ______ yogurt.
3. Drink the smoothie. (以he为主语改写句子)
    ______ ______ the smoothie every day.
4. We need one teaspoon of cinnamon. (对划线部分提问)
    How ______ ______ of cinnamon do you need?