句型转换。根据要求补全句子，并注意大、小写形式。
This is a watch. （改为复数形式）         are some        .
She is Cindy. (改为同义句)                is Cindy.
Those are her sisters. (改为一般疑问句，并做肯定回答)
               her sisters? Yes,        are.
My telephone number is 8653472. (对划线部分提问)
What is                number?
Her friends are Mary and Jenny. (改为否定句)
Her friends       Mary and Jenny.