按要求改写下列句子。
1. My cousin is in the third grade this year. (改为同义句)
My cousin is in _____ _____ this year.
2. He is back form Qingdao. (改为同义句)
He _____ _____ form Qingdao.
3. He is five years old. I am five years old, too. (改为同义句)
He is five years old._____ _____ _____.
4. School begins at 8:30. (改为一般疑问句)
_____ school _____ at 8:30.
5. My friend will come to see me this evening. (改为否定句)
My friend _____ come to see me this evening.