Rewrite the sentences according to request. (按要求完成下面的句子)
1. He has a birthday cake. (改为一般疑问句)
________________________ .
2. Today is Friday. (对划线部分提问)
_______________________ .
3. It's April 4th. (对划线部分提问)
_______________________ .
4. It isn't a dog. (改为肯定句)
_______________________.
5. Is her birthday in April ?(作肯定和否定回答)
_______________________