句型转换。
1. That's a white pig.(变为一般疑问句)
2. Today is Saturday.(对划线部分提问)
3. They are jumping.(对划线部分提问)
4. It's July third.(对划线部分提问)
5. My father is a Chinese teacher.(变为否定句)
1. Is that a white pig?
2. What day is it?
3. What are they doing?
4. When is your birthday?
5. My father is not a Chinese teacher.